Can allergies cause fever? How are allergies and fever related? Strong allergens that cause anaphylactic shock

Allergy has many manifestations. Often it is accompanied by lacrimation, runny nose, redness of the skin, rash, dermatitis, bronchial asthma. Sometimes a high temperature can join these symptoms. What to do if this happened? And can temperature accompany such a disease as an allergy?

Does fever occur with allergies?

There is a fairly widespread opinion, including among doctors, that temperature and allergies are things that are not connected with each other in any way. While this is true in most cases, there are actually a number of exceptions to this rule.

An increase in body temperature is usually due to various factors. It can be caused by both endogenous (internal) and exogenous (external) causes. In some cases, an increase in temperature is a protective reaction of the body, stimulating all its resources to fight infection, and in others, the presence in the blood of special substances that cause an increase in temperature - pyrogens. As pyrogens can be, for example, toxins produced by bacteria. Thus, an increase in temperature is a process for which many biological mechanisms must be involved. With allergies, this situation is usually not observed, this process affects only part of the body's immune system.

However, the mechanism of allergy occurrence does not completely exclude such a scenario. After all, the development of an allergic reaction involves the release into the blood of a large number of inflammatory mediators - histamines. They perform many functions in the body, and one of them is to expand the peripheral vessels and increase their permeability. And this, in turn, entails hyperthermia of the tissues in which the concentration of histamine occurs.

However, an increase in temperature is a systemic reaction of the body. And in order for histamines to contribute to an increase in the temperature of the whole organism, and not of its individual tissues, for example, skin, a lot of histamine must be released. And this already poses a threat to the whole organism. Therefore, fever with allergies is a dangerous symptom that can be accompanied by other severe manifestations, such as anaphylactic shock.

However, most often with allergies, there may be a temperature due to reasons that are not related to the allergy itself. For example, fever can be caused by a concurrent fungal, bacterial, or viral infection. It is no secret that many manifestations of allergies, such as edema, dermatitis, rhinitis, can be accompanied by infectious diseases of a viral or bacterial nature. And in such a case, fever is a completely natural symptom - a sign of the body's fight against infection.

In addition, an increase in temperature can be caused by another reason, namely, intoxication of the body. After all, many toxins are also strong allergens. Thus, in such cases, fever and allergies can go hand in hand, although they are not directly related.

Thus, allergies can sometimes be accompanied by fever, although this is a rare symptom. Such cases are called atypical allergies. However, the temperature values ​​for atypical allergies usually remain low - no more than + 37.5 ° C, except, of course, in those cases when a bacterial or viral infection joins the allergy.

Allergies most commonly associated with fever

However, allergies can give fever in some varieties of this disease, and in these cases, fever is the norm rather than the exception. These types of allergies include:

• allergy to stings of insects and animals,
• drug allergy,
• allergy to vaccines (serum sickness).

Allergy to bites

The poison that is injected during a bite by insects (bees, wasps, ants, etc.), not to mention snake bites, has a toxic effect on the body. If it enters the systemic circulation, then the victim, along with an allergic reaction, may experience a sharp increase in temperature. This is a kind of protective reaction of the body, which thus reacts to the penetration of poisons into it. At the same time, temperatures can be quite high and reach +39°C. This reaction is especially characteristic of children. In addition to this symptom, bite allergies are often accompanied by swelling and a rash. This type of allergy is usually severe and requires immediate medical attention.

drug allergy

Many drugs can cause, in addition to an allergic reaction, also an increase in temperature. It does not matter whether they are administered by injection or enter the gastrointestinal tract. Especially often there is an allergy with the introduction or ingestion of antibiotics of the penicillin series. The temperature rises somewhat less frequently when using tetracyclines, sulfonamides, metronidazole. This reaction is most typical for children.

Vaccine administration (serum allergy)

In fact, severe allergies with vaccines are rare. However, if signs of an allergy are nevertheless observed, then they are usually accompanied by such a symptom as fever. In some cases, this phenomenon is not a pathology, as it indicates that the immune system has recognized the antigen of the pathogen and is learning to deal with it. Most often, a symptom such as fever with the introduction of vaccines goes away by itself. However, in severe cases, fever with serum sickness may be accompanied by pain in the joints and muscles, urticaria, damage to internal organs.

Temperature in children with allergies

In children, fever with allergies is more common than in adults. However, it is far from always that it can be the result of an allergic reaction, and not an infectious disease concomitant with allergies. Of course, a cold in a child is usually accompanied by respiratory symptoms - cough, runny nose, sore throat. However, in some cases, the symptoms may be erased, for example, with an enterovirus infection, or they may not appear immediately. In addition, allergies and infectious diseases can have similar symptoms, such as a runny nose (rhinitis).

Of course, there are cases when there are serious reasons to believe that the child is suffering from an allergic reaction. For example, if he was vaccinated shortly before, or he was bitten by an insect. Also, children are often characterized by an allergic reaction to pollen, in which there is an increase in temperature. This is a rather serious condition that, if left untreated, can lead to complications such as bronchial asthma. Food allergies in a child can also lead to an increase in body temperature.

However, in any case, when the child's temperature rises, it is necessary to consult a doctor in order to accurately establish the diagnosis - whether it is an atypical allergy or an acute respiratory disease. Also, the doctor should differentiate allergies from certain viral diseases accompanied by itching, rashes and high fever - chickenpox or rubella. An important role is played by the analysis of the anamnesis - so, if a child has already experienced allergic reactions, then the likelihood that he has an atypical allergy attack, and not a simple ARVI, increases.

Fever in adults

Atypical allergies are less common in adults than in children. However, in some cases, such as allergies to drugs or insect bites, the temperature may rise in adults. At the same time, atypical allergies are usually accompanied by the usual allergy symptoms - the appearance of a rash, swelling, etc.

Treatment of fever with allergies

Fever is just a symptom that indicates a pathological process, although rather unpleasant, and not the disease itself. Therefore, there is no special need to bring down the temperature with allergies, unless it exceeds high values, for example, at + 38 ° C. The focus should be on treating the causes of allergies - neutralizing allergens and preventing their further entry into the body. For example, if the allergy was caused by drugs, then it is necessary to stop taking them, and if the nature of the allergy is food, then enterosorbent preparations should be taken to help neutralize the allergens in the gastrointestinal tract. Also, to reduce the level of exposure to the body of inflammatory mediators - histamines, antihistamines should be taken. It must be remembered that conventional antipyretic drugs, such as paracetamol and aspirin, are not able to prevent the onset of severe allergy complications, such as anaphylactic shock and.

An allergy is an abnormal immune response to contact with an irritant. Today, 80% of the population suffers from various intolerances. Symptoms and the clinical picture of the disease can vary greatly in their manifestations. It depends on the individual characteristics of the human body and some external concomitant factors.

Allergic symptoms depend on the concentration of the allergen in the body and on the duration of the period of contact with it. Faced with an illness for the first time, many patients are interested in whether there can be a temperature with allergies.

Important! It is possible to talk about temperature as an allergic reaction only if other inflammatory processes and respiratory diseases in the body are excluded.

Allergies and food intolerances

Symptoms: redness, rashes in the form of acne and hives

An allergic reaction of the immune system is a pathology that occurs upon contact with an allergen. Very often, patients confuse the disease with individual intolerance to the product. Intolerance, as a rule, occurs to a specific product and does not manifest itself when using the components of this product separately. Symptoms of such a negative relationship can be completely identical to allergic manifestations. The main difference is the absence of itching in skin rashes and severe complications after contact with an intolerable substance. Another difference is that allergies go away with temperature under certain circumstances. Food intolerance does not cause this symptom.

Allergy is an immune disease that is genetic in nature. To avoid serious consequences of exposure to an allergen in a child, it is important to know whether close relatives are allergic. The presence of any allergy doubles the likelihood of unpleasant reactions. Allergies can cause symptoms such as:

• respiratory manifestations. Increased mucus secretion, rhinitis, cough, increased tearing of the eyes, reddening of the mucous eyes and sneezing;
• skin symptoms. Redness, rashes in the form of acne and hives (small blisters), dry skin and peeling. In some cases, dermatitis and eczema develop;
• discomfort in the form of burning, itching and pain;
• increased body temperature;
• intestinal disorders. Diarrhea, constipation, flatulence, abdominal pain, nausea, vomiting and dehydration;
• complications in the form of Quincke's edema, anaphylactic shock and stenosis of the larynx.

Carefully! Knowing whether an allergy can give a temperature is important to know with respiratory manifestations of pathology. This will allow you to consult a doctor in a timely manner and identify the allergen in order to exclude it from the diet. It is extremely important not to confuse allergies with a cold.

Algorithm for the development of allergies

Allergy develops in several stages and almost never manifests itself upon first contact with the allergen.

Allergy develops in several stages and almost never manifests itself upon first contact with the allergen. At this point, the body simply recognizes it and develops a strong reaction to this component.

With the repeated penetration of the pathogen into the blood, a special reaction occurs between the proteins. On the appearance of negative cells in the body, a special production of antibodies occurs. Immunoglobulin at an increased content affects mast cells, making their walls fragile. The cells burst and release massive amounts of histamine. The trace element is the main mediator of inflammatory processes in the body. On the general condition of all systems, histamine with allergies affects in such a way that:

• expansion of narrow vessels that are located along the periphery of the whole body;
• narrowing of large blood vessels and, as a result, blood pressure may rise;
• muscle contraction. It is this effect that causes cough, bronchospasm, convulsions and disorders of the gastrointestinal tract;
• increased secretion of mucus.

Due to this pathological effect of histamine on peripheral vessels in the body, temperature is possible with allergies in children at the local level. That is, the temperature of the skin rises.

Carefully! The development of allergies can manifest itself with high intensity. With the appearance of a barking cough, hoarseness and heavy breathing, you should immediately call an ambulance.

Why does the system temperature rise with allergies

Especially dangerous is a fever from an allergy to medicines.

To understand whether there is a temperature with allergies, you need to understand why these indicators increase. With respiratory diseases that arose with allergies, the temperature is up to high rates. In this case, self-medication is extremely dangerous. You must immediately contact a doctor.

In the absence of respiratory and bacterial infections, temperature with allergies in adults is extremely rare. This is due to the formed immune system. In children, such manifestations occur much more often. With inaction and lack of treatment, the processes of temperature increase in the periphery become more global. The reaction spreads throughout the body and contributes to an increase in systemic temperature.

Contributing factors, with a non-standard course, may be:

• allergy to medications;
• reaction to the bites of various insects;
• allergy to sunlight (usually accompanied by sudden changes in temperature from high to critically low levels);
• allergy to protein from the serum of other biological organisms (serum sickness).

Diagnosis of allergies in the case of such symptoms is carried out according to the standard scheme. Investigations include blood tests and skin tests for the allergen.

Important! An increase in temperature from an allergy to medicines is especially dangerous. In this case, no independent measures, except for rubbing with warm water, can be carried out.

Treatment and medication measures at a temperature

If the temperature rises with a suspicion of an allergy, it is necessary to provide the patient with simple assistance - it must be provided with plenty of fluids

Various studies by scientists show that an increase in temperature with urticaria occurs in patients depending on the risk group:

• elderly people. The temperature rises only with severe poisoning of the body with an allergen;
• pregnant women. There was no tendency to such a manifestation in the group;
• children. A category of patients prone to temperature manifestations of allergies. However, parents should not neglect such a symptom. Be sure to exclude additional diseases.

When the temperature rises with a suspicion of an allergy, it is necessary to provide the patient with simple assistance. First of all, you need to provide him with plenty of fluids. If the temperature does not rise above 380C, it is not necessary to bring it down. However, if a person is prone to vasospasm, reduction measures must be taken earlier.

In the case of a temperature manifestation along with allergic symptoms, the following therapy can be used:

• antihistamines. Block the effect of histamine on mast cells;
• sorbents. Remove toxins from the body;
• antipyretics. Reduce temperature. It is better to choose drugs without additional additives to the active substance.

Important! Heavy drinking should consist of unsweetened tea or still water juices, fruit drinks and herbal decoctions can cause a cross-allergic reaction and aggravate the condition.

In addition to the well-known symptoms of allergies, there are those that "remain in the shadows." They appear in a very limited circle of people, and very rarely, and make you think first of all about some other pathology. Knowing them “by sight” is necessary in order to diagnose allergies in time and stop contact with the substance that causes it. That is why the topic of this article is whether there can be a temperature with allergies?

An allergy is an overreaction of the body to a substance. Symptoms of the disease are formed as a result of a cascade of biochemical reactions that occur as a result of the action of the allergen.

There are three phases of the pathological process:

They are realized due to the action of the substance on special cells - receptors located in different organs. At the moment, the first property is important. The body has several mechanisms for regulating temperature, one of them is the “mobility” of blood vessels. The more they expand, the more heat a person gives off (remember the flushed face of a feverish person). There are exceptions to this rule, possibly malfunctions in the body, but now we are not interested in this.

Histamine has the property of dilating blood vessels. Hence the local increase in temperature with allergies. However, you need to understand: the “systemic” temperature for allergies in adults in a “normal”, normal, standard situation does not rise. There is not so much mediator released that it acts so intensely.

Causes of a rise in temperature with allergies

The above is relevant for the "norm", in the general case. But then why does the temperature rise with allergies? If the reaction "grows", expands, acquires a systemic character. The organism loses the remnants of control over the situation, a “global” process develops.

There are other special situations that cause a non-standard course of the disease, for example:

• drug allergy;
• photodermatosis;
• serum sickness;
• less often - food allergies.

Thus, the answer to the question of whether an allergy can give a temperature is positive.

Temperature increase in various allergic diseases

Consider some allergic diseases in more detail.

For the nasal mucosa, histamine is the “worst enemy”. It causes swelling, local redness, the appearance of sparse mucous secretions in large quantities, itching.

However, allergic rhinitis alone is never accompanied by hyperthermia. Even if the temperature is 37 ° - a reason to think about the correctness of the diagnosis.

In the case when lacrimation, a feeling of sand in the eyes and other phenomena of allergic conjunctivitis join the runny nose, an increase in temperature becomes more likely.

Most often, rhinitis develops with seasonal exacerbations, for example, hay fever -. However, the type or “period of activity” of the allergen cannot be associated with the risk of fever, they are not related to each other.

Therefore, it does not matter in what season of the year an allergic pathology developed - whether in spring, at the time of flowering of plants, in autumn, when dust mites and mold fungi feel great, or in winter, during the "reign" of cold allergies. And it is impossible to say that hyperthermia develops more often in summer or, for example, in autumn.

Allergic cough and bronchitis

First, it is worth differentiating these concepts. Under allergic cough we will have in mind reflex attempts to clear the larynx during tickling, tickling, hoarseness. But bronchitis is a deeper process that affects the actual bronchi.

In the first case, an allergy develops extremely rarely, there are literally a few such cases. Perspiration and the cough it causes are inherently close to allergic rhinitis and develop as a result of mucosal edema.

But allergic bronchitis with temperature is a slightly more frequent phenomenon. Despite the fact that the presence of hyperthermia accompanying a dry barking cough is a sign of a process of a bacterial or viral nature, there are exceptions.

In favor of allergic bronchitis with hyperthermia, shortness of breath and a productive cough from the first day of illness will testify (returning to the effects of histamine - bronchial constriction and increased secretion of mucus). It is worth adding that, among other things, this mediator dilates the vessels of the lungs, increases their permeability, which leads to even more severe edema and narrowing of the bronchi. And, of course, a prerequisite is the presence of contact with the allergen.

This disease is a good illustration of the question of whether there can be subfebrile temperature with allergies. Usually, 38° is the limit, if it reaches it at all. By the way, this is another distinguishing feature: with bacterial or viral bronchitis, the thermometer can “crawl” up to 39.5 ° C.

food allergy

Food allergens are among the least aggressive. In this regard, the development of temperature changes in food allergies is unlikely. However, it is possible. Hyperthermia will develop when there is a very strong reaction with the presence of:

• indomitable repeated vomiting;
• profuse diarrhea;
• intense pain in the abdomen;
• headaches, dizziness.

Usually the mercury column does not rise to high numbers. The maximum is 37.5°.

Allergic dermatitis

Allergic dermatitis and temperature are rarely combined. For the development of such a complication, the surface of the lesion must be very extensive.

Most often, a “cosmetic” allergy has such serious consequences, in the case when a person did not conduct a preliminary test, but immediately applied the product to a large area of ​​\u200b\u200bthe skin. The risk is especially high when sunburn is combined with an allergy to sunscreen or emollient.

Often the thermometer shows from 37 ° to 38 °, when skin manifestations are combined with some other - respiratory, ophthalmological, etc. High temperature is an even greater “curiosity”. If dermatitis is accompanied by it, you should immediately call a doctor, as a severe generalized reaction may develop.

Photodermatosis

Allergy to the sun itself is difficult to distinguish from a sunburn. But if one is superimposed on the other, or overheating and sunstroke join, life becomes very difficult. Both of these pathologies carry unpleasant symptoms, but when they are combined, the human condition worsens significantly. The picture of a sunstroke is as follows:

• high body temperature, sometimes patients complain that the temperature jumps, then up to 39 °, then down to 35 °;
• dizziness;
• nausea, vomiting;
• weakness;
• loss of consciousness;
• disorientation;

But the symptoms of sun allergy are different:

• red blister-like rash on exposed skin;
• itching, peeling of the skin;
• local redness.

Allergy to insect stings

Bites and stings, to which the body reacts with an excessive immune response, are often accompanied by fever. But it must be said that, as in the previous paragraph, here the temperature accompanies not so much the immune processes themselves, but their combination with the main factor (in this case, the effect of insect venom on the body).

Toxic substances that insects spray into the blood are themselves capable of causing hyperthermia (especially when it comes to such large representatives as wasps, bees, hornets, gadflies). And in the case of allergies, vascular permeability is increased, respectively, absorption is better.

In addition, the immune system, as it were, is “busy” with allergies and literally does not have time to respond to the poison.

The temperature in this case can rise to 38 °, there is a deterioration in the general condition, weakness, often a headache. All this is combined with local symptoms:

• hyperemia (redness) of the bite site is much more intense than in the absence of an allergic reaction;
• intense itching;
• the appearance of a rash around the bite;
• the occurrence of allergy symptoms from other organs and systems.

drug allergy

Allergy is like hives with fever, and rash, and swelling - in its “pure form” a reaction to drugs. The temperature in this case rises to 38-39 °.

Generally speaking, drug allergy is one of the most dangerous and severe diseases of an allergic nature. Drugs are introduced into the body in fairly large (compared to the same dust or pollen) doses.

The logical question is why then there are no severe symptoms with gastrointestinal allergies? But not all substances are not completely absorbed in the intestines, they are partially excreted. In addition, the allergen needs to overcome many more barriers to get into the blood.

And the medicine, especially administered parenterally (bypassing the gastrointestinal tract - intravenously, intramuscularly, intradermally), flows into the bloodstream much faster.

A life-threatening development of events in drug allergy is anaphylactic shock. Therefore, an increase in temperature can even be called a rather favorable symptom.

In addition to it, there may be:

• itching, rash at the injection site;
• weakness, dizziness;
• sneezing, rhinorrhea, lacrimation;
• soft tissue swelling.

But this pathology confidently answers “yes” to the question of whether there can be a temperature with allergies, because. hyperthermia is one of its main symptoms.

Before describing the disease, it is worth saying that there are 4 types of allergic reactions. Three of them are immediate and one, the fourth, is delayed. What we used to understand as an allergy (including "popular" symptoms and anaphylaxis) is type 1. Type 2 (which, by the way, includes drug allergies) are cytotoxic reactions that damage cells. The fourth type is delayed reactions, such as tuberculosis and bronchial asthma.

Serum sickness is an immunocomplex hypersensitivity reaction of the third type. It develops in response to the introduction of vaccines, sera, blood components. Antibodies are produced in large quantities against antigens entering the bloodstream, forming antigen-antibody immune complexes. These formations are deposited in the walls of blood vessels and cause inflammation in them.

Symptoms for all reactions of this type are the same: a week and a half after the allergen enters, first a sharp hypothermia is detected, and then, on the contrary, hyperthermia.

A temperature of 40 ° is a “common occurrence” for this pathology.

Other symptoms include:

• pain, swelling and redness at the injection site;
• enlargement and soreness of nearby lymph nodes;
• the appearance of a rash on the body, accompanied by intense itching;
• pain, swelling of the joints;
• sometimes laryngeal edema develops;
• the heart muscle is affected;
• the nervous system suffers (neuritis, sciatica are possible)
• etc.

The only good news is that in most cases, after a few days, all manifestations pass by themselves.

Temperature and allergies in people at risk

Let us consider in more detail the features of the course of allergic reactions with temperature in people from risk groups.

Temperature for allergies in the elderly

Allergy in the elderly, like any other disease, occurs with a much less intense severity of symptoms. To illustrate this thesis, it is worth saying that people over 65-70 do not experience significant pain even with appendicitis.

So with allergic reactions - the symptoms are smoothed out, the diagnosis is difficult, there are practically no subjective sensations. In order for an elderly person to have a fever with allergies, a “giant” reaction is needed, expressed extremely intensely. Such a problem can develop with the introduction of the drug and in the case of serum sickness. The temperature will rise to 37-38°.

Temperature for allergies in pregnant women

In this section, only one thing is worth saying: if a pregnant woman has a fever, then she immediately needs to go to the hospital. And in a good way, there is no time to find out exactly why such a reaction developed.

However, it should be noted that hyperthermia develops in expecting a child much less frequently than in ordinary women. This is due to the fact that immunity during pregnancy noticeably weakens, allergic reactions are frequent, but they are mostly minor.

The most common of these is allergic rhinitis of pregnancy. Diseases do not tend to generalize the process.

Temperature for allergies in children

The body of a child is much more sensitive to various stimuli than an adult. Therefore, in children, allergies are more likely to cause a rise in temperature.

Dr. E.O. Komarovsky believes that the most important thing is to understand whether allergies are the “culprit”. For example, when figuring out whether an allergic cough bothers a child or an infectious one, it is worth taking as a basis the fact that there should be no temperature reactions with hypersensitivity.

But if the temperature stays up to 38 ° for no particular reason, this may be an allergy. However, after 2-3 days, other manifestations (allergic rhinitis, conjunctivitis, skin symptoms, etc.) must necessarily join it. Children are more likely to have a heightened immune response with fever to vaccinations and medications.

Another option is the appearance of only temperature as the main manifestation of an allergic reaction. This option can only be considered in children. This indicates a low activity of the immune system and, paradoxically, a very serious allergic reaction.

It is possible to understand that we are talking about a symptom of an allergy only according to the “history data” - whether there was contact with an allergen or, perhaps, the child is in the prodromal (preparatory, preclinical, asymptomatic) period of an infectious disease. In this case, it is urgent to show the baby to the pediatrician.

However, you still need to focus on the fact that with allergies, children should not have a temperature.

Differential Diagnosis

This section is extremely important. Temperature, even a slight one, is a rather dangerous symptom. Preserving it for no apparent reason may indicate serious and dangerous diseases (tuberculosis, heart defects, oncology).

As for the temperature during allergies, this phenomenon is non-standard. And that is why it is so important to make sure that hyperthermia is precisely of an allergic nature.

First of all, of course, you need to focus on the accompanying symptoms and build on them.

So, if a person is bothered by a runny nose, cough, sore throat, lacrimation, an allergy should be distinguished from a respiratory disease. On the topic of that, there is an article on our portal.

Briefly, we can say the following:

• With acute respiratory infections, a runny nose is characterized by a viscous, greenish discharge, a tendency to nasal congestion without rhinorrhea. With allergies, on the contrary, the mucus is liquid, transparent, easily and abundantly excreted;
• ARI is characterized by headaches, heaviness in the head, weakness, a desire to close your eyes, hide warmly and sleep. In the clinical picture of allergy, the main symptom is itching.

When gastrointestinal symptoms are observed, it is incredibly important to distinguish an allergy from a poisoning or an acute intestinal infection!

During the infectious process, the temperature rises to much higher numbers (39 ° or more), there are:

• blanching of the skin,
• weakness,
• dizziness.
• In severe cases, even loss of consciousness.
• There is always profuse vomiting, constant nausea, there is a danger of dehydration.

With allergies, the general condition is better, the symptoms are usually less "ferocious". The temperature does not rise above 37.5 °.

It is vital to distinguish severe photodermatosis from heat stroke.

Treatment and prevention of fever

It is worth saying that if the temperature does not rise above 38 ° and does not cause much concern to the patient, it is not necessary to bring it down - it will pass on its own.

The boundaries between drug and alternative treatment in this situation are somewhat blurred. The fact is that the first recommendation that any doctor will give is to drink plenty of water. You can drink:

• water;
• decoctions of herbs (for example, chamomile) - be careful! May cause re-allergy, intensifying symptoms!;
• rosehip decoction;
• fruit drink;
• compote.

It is permissible to add lemon, honey (in the absence of allergies to them), mint to drinks.

Fruit juices are contraindicated (especially for food allergies and children), sweet carbonated drinks (especially unnatural colors with a huge amount of dyes and preservatives).

If the temperature does not drop, apply:

• antipyretics (Paracetamol, for children - Nurofen);
• antihistamines (Claritin, Zyrtec, Suprastin, etc.);
• with food allergies - enterosorbents (Smecta, Polysorb).

Do not rush to use hormonal drugs, even with local allergies. There is a possibility of an error in the diagnosis, and then with the use of glucocorticoids, the risk of spreading the infection increases significantly.

It is better not to engage in self-treatment of children. If within a few hours on their own, with plenty of drinking and taking 1 dose of Nurofen and an antihistamine, the temperature does not subside, seek medical help.

Prevention of fever with allergies

The most important thing is to prevent the allergy itself, its exacerbations. You can prevent the rise in temperature by:

• the fastest relief (stop, stop) of an allergy attack;
• refusal of uncontrolled intake of antihistamines;
• timely visit to the doctor.

Lowering the temperature with allergies

Can the temperature be lowered with allergies? In extremely rare cases, but yes, this option is also possible.

The most dangerous explanation is the onset of anaphylactic shock.

The person turns pale, cold sticky sweat appears, pressure and temperature drop. Urgent medical intervention is needed!

Before the arrival of the Ambulance, the patient should be given any available antihistamine, free the airways and cover with a warm blanket.

In addition, there are two most likely causes of a decrease in temperature with allergies:

• the first stage of serum sickness, which was discussed above. This is due to the vascular reaction that develops as a result of the deposition of immune complexes on the walls of arterioles, venules and capillaries;
• "Small" symptoms of a food allergic reaction in infants. These include:
  • loci of a rash accompanied by itching and flaking of the skin;
  • redness of the oral mucosa after eating and the skin around the anus after defecation;
  • the appearance of diaper rash, crusts on the eyebrows, head;
  • development of pustular diseases;
  • loosening of subcutaneous fat
  • and, in fact, lowering the temperature of the skin.

An allergic reaction, not a low temperature, is the “object” to which therapy should be directed.

For the treatment of food allergies in infants, enterosorbents, rectal suppositories or syrup with antihistamines are used (only as prescribed by a doctor!). As for serum sickness, it can be prevented. Dr. E.O. Komarovsky advises 2-3 days before the vaccination to give the child a half dose of an antihistamine. Again, it is important to consult a doctor so as not to harm the baby.

Thus, changes in temperature for allergic reactions are not a characteristic symptom, but still sometimes occurring. The most important thing is not to let everything take its course and not to “attribute” all pathological manifestations to allergies. If you turn to a specialist in time, the cause of the increase or decrease in temperature will be quickly established and the necessary treatment will be prescribed.

Temperature with allergies in adults is a fairly rare symptom. In most cases, upon contact with a foreign protein, an acute reaction of the immune system, skin symptoms and problems with the digestive tract are observed. An increase in temperature is a sign of severe intoxication of the body, an active response to the action of an irritant.

What types of allergies cause fever? What drugs return the indicators to normal? How to distinguish the temperature in infectious diseases and allergies? Answers in the article.

Causes

Deviations from the norm appear with severe allergic inflammation, a large amount of a dangerous substance against the background of the body's hypersensitivity. An increase in temperature in adults with allergies is a sign of the active struggle of immune cells with a foreign protein that has penetrated the skin and tissues.

On a note:

• sometimes an allergy develops simultaneously with an infectious disease or as a reaction to the administration of a certain drug during the treatment of various diseases;
• poor health, weakened immunity plus exposure to an irritant significantly worsen the patient's condition, cause a complex of negative signs, including a temperature above normal;
• the weaker the defenses, the easier it is for the stimulus to influence various organs and systems.

Higher temperatures are more often observed with the following types of allergies:

• medical;
• a negative reaction to a bee, hornet or wasp sting;
• immune response to the introduction of serum, vaccine or foreign protein;
• intolerance to wool and saliva of pets.

After many years of observation, doctors found out that the most acute reaction with an active rise in the thermometer is observed with the bites of stinging insects, the use of certain drugs and protein intolerance. The stronger the intoxication, the more the indicators differ from the norm. Negative symptoms with drug, food allergies, with wasp or bee stings often develop after a short period of time after the penetration of irritating substances.

How to distinguish the temperature with allergies from the symptoms of a cold

Adult patients have fairly strong immunity, allergic reactions are less common than in childhood. With reduced immunity, poor diet, addiction to citrus fruits, chocolate, sweets, intolerance to certain drugs, an acute immune response is possible.

The main differences between the signs in acute respiratory infections, viral or bacterial infections and allergic inflammation are summarized in the table:

On a note! After analyzing the signs, the patient and relatives can quite accurately determine whether the temperature has risen with acute respiratory infections, influenza, rubella, or under the influence of an allergen. With any kind of negative reaction, with the development of colds or a viral / bacterial infection, one should not make a common mistake - to self-medicate. Only after visiting a specialist (call a doctor at home), clarifying the diagnosis, therapy begins.

Effective Treatments

Sometimes it is difficult to completely limit the effect of the irritating component (plant pollen, crossing in nature with stinging insects). In this case, you need to protect the body (gauze bandages, nose filters, glasses, frequent washing of clothes), avoid areas where wasps or bees fly.

Basic rules of therapy:

• . Syrups are rarely prescribed for adults. In case of an acute reaction, it is important to take a fast-acting antiallergic agent of the classical group (1st generation) in time:,. With moderate or mild symptoms, new generation allergy medications are prescribed:, and others;
• . The task is to remove the allergen from the body as soon as possible, reduce the load on the immune and digestive systems, limit the negative effect on the blood vessels and the central nervous system. Sorbent components absorb and remove harmful substances, increase local immunity, and normalize the condition of the intestines. , Polyphepan, Enterumin, White coal, Smekta, Sorbeks, Multisorb,;
• for outdoor use. Ointments are prescribed only against the background of active allergic inflammation. Severe forms of the immune response often accompany pronounced skin reactions. Glucocorticosteroids for allergies are allowed to be used in a short course to avoid severe side effects. Advantan, Elokom, Lokoid, Flukort, Hydrocortisone ointment;
• antipyretic compounds. Tablets or syrup to normalize temperature indicators should be taken only in a serious condition, with indicators from +38 C and above. A thermometer at +39 degrees with allergic reactions is a rarity. A similar situation is possible only with intoxication against the background of an insect bite or after taking antibiotics. Ibuprofen, Paracetamol, Aspirin, Nurofen. It's important to know: some components of antipyretic drugs increase allergic reactions. For this reason, drugs are selected only by a doctor.

Effective treatments for allergic marginal keratitis of the eyes are described on the page.

Go to the address and read about whether there can be an allergy to carrots and how it manifests itself.

Folk remedies and recipes

Phytopreparations lower the temperature, cleanse the body, exhibit a weak anti-inflammatory effect, and strengthen the immune system. Before using herbal decoctions, it is important to consult an allergist: some plants increase negative symptoms.

Proven funds:

• currant leaf tea. Combine 300 ml of boiling water with 2 tbsp. l. dry or fresh vegetable raw materials (pre-crush the leaves). After half an hour, the composition, infused under a closed lid, is ready for use;
• temperature collection. Chamomile, dried wild rose, coltsfoot - a tablespoon each, linden flowers - 2 tablespoons. Mix the ingredients, pour into a saucepan, pour one and a half liters of boiling water. Boil the composition for 3 minutes, set aside from heat, cover with a lid. After a quarter of an hour, strain the remedy, take half a glass twice a day. Herbal collection is not suitable for patients diagnosed with hay fever;
• nettle decoction. Herbalists recommend a useful remedy for many allergic diseases. For 500 ml of water, you will need a couple of tablespoons of dried or fresh leaves of a burning plant. Pour boiling water over natural raw materials, boil for 2 minutes, insist under the lid for a third of an hour, strain. Take 1/3 cup of decoction daily;
• proven herbal remedy for cleansing the body. Boil water (0.5 l) in a container, add willow or oak bark (a tablespoon), simmer over low heat for 10 minutes, cool. Filter the decoction, use in the morning and evening before meals, a third of a glass.

At a temperature against the background of allergic diseases, you can not drink tea with honey, raspberries, full-fat milk with butter. These foods are powerful irritants that increase the negative immune response. Receiving an additional portion of the allergen disrupts the course of therapy, provokes an increase in negative signs.

An increase in temperature with allergies is a reason for taking antihistamines. Antipyretic compounds are needed only at high rates (38 degrees or more). Relief of allergic inflammation eliminates negative symptoms, including fever during acute immune reactions.

Moreover, the first signs of allergic rhinitis appear in the first twenty minutes after contact with the allergen. Sometimes even a few seconds are enough to start the inflammatory process.

The patient is overcome by a whole range of unpleasant symptoms that interfere with normal work activity and the educational process.

Many patients are concerned about the question, can there be a temperature with allergic rhinitis? Or does an increase in body temperature indicate that the disease is of an infectious nature and is not associated with an allergy? Let's figure it out!

How does an allergic reaction occur?

When an allergen enters the nasal mucosa, a complex process starts in the human body. When an allergen enters a person's nose, the body perceives it as a foreign element and tries to fight it. Why our immune system reacts this way is not known for certain. But he begins to defend himself intensely from this irritant, producing a large number of special antibodies - histamines, which causes the appearance of signs of allergy. It is noteworthy that when the allergen enters the body for the first time, no allergy symptoms appear. There is a so-called acquaintance of immunity with the substance. And if this “acquaintance” went wrong, upon repeated contact, a person will feel all the signs of an allergy in all its glory.

Symptoms

The first symptoms of rhinitis of allergic etiology are similar to signs of infectious diseases. That is why some patients first of all begin to be treated for a cold and are perplexed why the symptoms of the disease do not go away and the general condition does not improve.

Symptoms of the disease include:

• frequent bouts of sneezing;
• severe runny nose - from the nose constantly flows; mucus is copious and mostly clear;
• lacrimation;
• itching in the eyes;
• conjunctivitis;
• itching in the nasal cavity and throat;
• nasal congestion;
• difficulty breathing through the nose;
• photophobia;
• cough;
• irritability, fatigue;
• sleep problems.

The impact of allergens on the body in some cases can also provoke an increase in body temperature. Let's take a closer look at this symptom.

Increased body temperature with allergies: causes

There are several causes of an allergic nature that can cause fever.

The first reason is food allergens. It happens that such allergens can cause a temperature increase of up to 39 ° C. At the same time, the patient may experience redness of the skin, headaches, increased sweating.

The second reason is reactions to medications, which can also provoke skin itching, swelling of the face, hands, feet, and general intoxication of the body.

The temperature in allergic rhinitis can be caused by contact with pollen from flowering plants, bushes and trees, house dust, wool or saliva of pets on the nasal mucosa.

Insect bites and vaccinations can also cause fever.

As a rule, in all cases, taking antihistamines leads to the normalization of the patient's condition.

How to distinguish temperature with allergies from signs of infectious diseases?

At first, a cold and an allergy can be difficult to tell apart due to the similarity of symptoms. The patient may try in vain to cure an infectious disease, but in fact he has a banal allergy. You need to be able to distinguish an allergy from a common cold.

Friends! Timely and proper treatment will ensure you a speedy recovery!

First, a cold lasts up to a week, while allergies can occur all year round. Secondly, allergies are distinguished by rapid symptoms. We have already mentioned that the first signs appear no later than twenty minutes after interaction with the stimulus. Thirdly, the discharge from the nose with an infectious disease has a yellow or green tint, while with an allergy it is transparent. Also, with a cold, the patient feels an ache all over the body, severe weakness.

Some infectious diseases have a similar symptom with allergies - fever and a rash, but there are also distinctions. For example, with rubella, rashes appear only on the face, unlike allergies; body temperature is high, but it is quickly knocked down by antipyretics and, with proper therapy, the next day it goes down.

Compared with chickenpox: the patient's body temperature rises to 38 ° C, but at the same time the rash that appears turns into blisters, which burst and disappear after a few days, while with an allergic disease, the rash may not go away for a long time.

Some people confuse allergies with scabies. With scabies, the temperature is kept at 37.5 ° C. The main difference between these two conditions: with scabies, itching overcomes the patient at night, and with allergies - throughout the day.

Only a doctor can correctly diagnose a particular diagnosis. There is no need to self-medicate, since such a careless approach is fraught with complications. The temperature is a serious bell, which you should immediately pay attention to and check with the doctor.

Treatment of allergic rhinitis

If an ENT doctor at the appointment, after a complex of examinations and tests, has established that the cause of fever and other unpleasant symptoms is allergic rhinitis, you will be prescribed effective therapy.

First of all, it is necessary to urgently limit, and it is better to completely exclude your contact with the allergen. If the cause of allergic rhinitis is the pollen of flowering plants, you should refrain from walking, but it is better to go to another area during flowering. Close the windows in your apartment or car so that pollen does not fly into the room or inside the car. If it is impossible to sit at home, after each walk, rinse the nasal passages with saline solutions such as Aquamaris.

The patient is prescribed drug therapy, which includes: taking antihistamines that block the production of histamine, the use of vasoconstrictor drops that relieve swelling of the nasal mucosa (Attention! Drops can not be used for more than five days, so as not to provoke addiction to them). If these measures are ineffective, the doctor may prescribe hormonal drugs - corticosteroids.

Recently, the method of allergen-specific immunotherapy has become increasingly popular. Its purpose is to reduce the sensitivity of the patient to a particular allergy. The principle of operation of this method is similar to vaccinations: the patient, starting from small doses, is gradually introduced into the blood of the allergen, increasing the dosage over time, subsequently achieving that the reaction of the immune system to the stimulus ceases to be as pronounced as before.

Friends! Remember! Allergic rhinitis, like any other type of allergy, is a disease! And any disease requires competent and timely treatment. Please make an appointment and come. We will be glad to see you and provide qualified assistance!