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Can Allergies Cause Fevers?

Fever with allergies

Can Allergies Cause Fevers? Allergies are often accompanied by other symptoms like watery eyes, sneezing, coughing, and rashes, but you may be surprised to learn that many allergy sufferers also experience fever as part of their condition. This does not mean that your allergies will always cause fevers, but it does happen frequently enough to warrant consideration as an allergy symptom. Here’s what you need to know about allergies and fevers.

Fever with allergies
 can allergies cause fevers

What are allergies

When someone has allergies, they are allergic to an outside substance that is found in a place where they live or work. The most common allergies are caused by things like pollen, dust mites, and mold spores. Some people may not know that colds can also cause nasal congestion and runny noses because of their hay fever-like symptoms. Though some allergic reactions might be delayed for up to 24 hours after contact with the allergen, itchy eyes can happen immediately when contact with an allergen occurs.

These reactions usually go away within minutes but sometimes can last up to six hours. If your allergy symptoms are constant (known as perennial rhinitis), then you should speak with your doctor about whether you should take over-the-counter antihistamines regularly throughout the year.

Common allergy symptoms

Symptoms of allergies vary widely. Some people might experience hives or red eyes, while others may get a headache, postnasal drip, congestion, asthma symptoms, or anaphylaxis. One of the more unusual symptoms is fever. It's not common for allergies to cause fevers.

However, it can happen if you have a cold at the same time as your allergy symptoms. Fever is one of the most common ways that colds are diagnosed and should be treated with acetaminophen (Tylenol) or ibuprofen (Advil). The fever usually goes away within three days of starting treatment.

Fever with allergy symptoms

If you have a fever, it may be caused by an allergy. You might experience symptoms like hives, swelling, shortness of breath and trouble breathing, diarrhea, or nausea. You might also notice that you have no other symptoms of illness besides fever. If this is the case, you should see your doctor because it could be a sign of an autoimmune disorder.

These disorders cause the body to produce antibodies that attack healthy cells instead of invaders like bacteria or viruses. The immune system then becomes too weak to fight off these invaders and an infection sets in. The result is a fever as well as other symptoms that vary depending on what type of disorder you have.

How do people react to allergic reactions?

Most people with allergies will experience redness, irritation, and itching in the eyes or nose. These reactions are usually accompanied by headache, nausea, or vomiting. These symptoms are generally severe enough to make it difficult for people to work, study, or drive; but they can last anywhere from 10 minutes to 72 hours.

Sometimes a person's allergic reaction will become worse over time and worsen into anaphylaxis which may lead to death without medical attention. Anaphylaxis is characterized by hives, tight throat, trouble breathing, swollen tongue or lips, low blood pressure, and loss of consciousness. If you notice any of these symptoms after coming into contact with something that you're allergic to you should seek immediate medical attention.

Why is an allergy test necessary

If you suspect that allergies are the root of your fever, talk to your doctor about an allergy test. Two tests might be done depending on whether the person is a child or an adult. In some cases, both tests will be performed to make sure they’re accurate. The skin test is more common than the blood test, so a discussion with your doctor should clarify which will be necessary in your case. A skin test involves pricking and rubbing a small amount of allergen onto the skin and waiting for at least 15 minutes for any reaction. An allergic reaction may take up to 24 hours before it appears.

Some people develop no symptoms when they have an allergy attack, while others experience one or more symptoms such as redness, swelling, itching, and pain. Sometimes mild symptoms go unnoticed but can also lead to severe reactions like a dangerous drop in blood pressure called anaphylaxis. A food diary may help your doctor identify what substances trigger your allergy symptoms. 

The good news is that once diagnosed with an allergy and avoidance steps taken, those who have had previous serious reactions usually don't have them again because their immune system develops immunoglobulin E antibodies to fight the allergens. 

In addition to medication treatment for allergies (such as antihistamines), there are other ways doctors try to manage these types of problems by avoiding exposure to possible triggers, using allergy shots, taking anti-inflammatory medications, or trying dietary changes. However, if you suspect that allergies are causing your fever, discuss this with your doctor before taking any action.

How does an allergist diagnose allergies?

Allergy specialists typically diagnose allergies by discussing your symptoms and medical history, then testing to see which substances your body has a reaction to. Your allergist will start with some of the most common airborne substances such as animal dander, pollen, or dust mites.

They'll give you a skin prick test where they can observe if an allergic reaction takes place. If so, it will usually show up within 15 minutes on the outermost layer of skin. This skin prick test is really just for deciding whether an allergy is possible. The blood test for allergies called the RAST test will confirm this by revealing elevated levels of IgE antibodies that have attached themselves to specific proteins that your body finds potentially harmful.

What causes seasonal allergies in adults?

Seasonal allergies are a common condition that manifests as an inflammation in the respiratory system. An allergic reaction to certain substances, such as pollen or animal dander, causes a release of histamine and other substances that can create symptoms like itchy eyes, coughing, headache, or sneezing. These reactions cause both localized physical irritation and overreaction by the immune system. Pollen grains can enter the body through the nose or mouth when breathing or touching an affected area.

Although symptoms typically subside once allergens disappear (fall weather often lessens the frequency of seasonal allergies), some people have chronic sensitivities that increase their sensitivity to even mild allergens for their entire life. While they may be able to prevent their symptoms with avoidance measures, these individuals still suffer from adverse effects due to the allergic response, including fevers.

How do I avoid my allergens?

Allergens can cause your immune system to act up in all sorts of ways, such as hay fever and coughing. Some allergens might also lead to allergic reactions that include symptoms like hives, itchiness, swelling, or even nausea. 

Allergic reactions are most common during the spring season when plants come back to life from their winter hibernation and start releasing pollen. Grass is another major allergen and it's prevalent every year. Pets, dust mites, and mold spores can also be big triggers for allergic responses in people who have been unlucky enough to develop sensitivities. 

Since allergens usually originate outdoors, one way you can avoid them is by staying indoors whenever possible. You should also try to keep your windows closed when pollen counts are high outside. You should always carry a water bottle with you so that if you do get a reaction while out and about, it will be easier to quench any thirst quickly.

Some people choose to take medication before they go outside to prevent an allergic reaction from happening at all. There are many different types of allergy medications available, but which one you use will depend on what type of allergies you have. When the body has an allergic response, histamine levels increase which causes blood vessels near the surface of the skin to expand and leads to reddening and itching - so antihistamines help alleviate these symptoms by blocking histamine receptors on cells throughout the body.

Treatment

There are a few reasons that allergies may cause a fever, but most of them have to do with the body's response to the irritant. For example, pollen-induced allergic rhinitis will usually cause some mucous production in the nasal passages. The body is fighting off the allergens, which then leads to inflammation and fever in addition to itchy eyes and congestion. If it doesn't seem like your symptoms are typical of what's associated with allergies, a medical professional should be contacted immediately.  

Mild cases can be managed by drinking plenty of fluids and using OTC medicines such as ibuprofen for pain relief. More severe cases may require hospitalization for intravenous fluids, oxygen therapy, or other treatments. To avoid future attacks, those who suffer from allergies should try to stay away from their triggers as much as possible and maintain good air quality inside their homes.

When should I see an allergist?

People can sometimes experience a fever when they have an allergic reaction. An allergy is a condition caused by the immune system’s overreaction to a substance, like pollen or mold, that isn't harmful. Your body may think these harmless substances are invaders and try to fight them off by releasing chemicals like histamine. This will cause symptoms like redness, swelling, and irritation when the allergen comes in contact with your skin.

Unfortunately, one of the side effects of this chemical release is feverish symptoms that usually go away within a day or two after the reaction subsides. If you don't notice any other symptoms or your fevers last longer than 2 days without improvement, it's time to see an allergist!

Conclusion

Can Allergies Cause Fevers? Some allergies can cause fevers, such as airborne allergens. Patients should consult their physician if they suspect that a fever is a result of an allergy. Physicians may prescribe medications such as antihistamines to treat the allergy and reduce the symptoms.

People with allergies need to take measures to prevent seasonal or other environmental allergies from occurring by keeping the air clean and avoiding contact with the source of the allergen whenever possible.



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