Can Allergies Cause a Fever? Plus Other Allergy Fever Facts

No, allergies cannot cause a fever. According to the ACAAI, allergies including hay fever, do not actually cause you to develop a fever. Not even a low-grade fever in adults, or children.

The term “hay fever” is derived from seasonal allergic rhinitis caused by inhaling pollen and other particles present in hay. Initially, the term was used to describe a variety of symptoms experienced by those exposed to hay, including irritation of the eyes, nose, and throat due to inhalation of particles.

Over time, “hay fever” became a collective phrase for allergy-like symptoms which are still associated with exposure to hay and other seasonal allergens today.

9 Possible Causes Of Fever

Possible causes of a fever infographic. A list of possible reasons you may be experiencing a fever as described by MedLinePlus. Autoimmune diseases, bacteria, cancers, childhood vaccines, heat-related illness, illness, infections, medications, and viruses.

Fevers are never fun, and knowing the cause is sometimes hard to figure out. Here is a list of possible reasons you might be experiencing a fever as listed by MedlinePlus, which you should discuss with your doctor.

Note: These possible fever causes are numbered alphabetically, not by prevalence, severity, etc.

  1. Autoimmune Diseases
  2. Bacteria
  3. Cancers
  4. Childhood Vaccines
  5. Heat-Related Illness
  6. Illness
  7. Infection
  8. Medications
  9. Viruses

Can you have a slight fever with allergies?

Yes, you can have a slight fever with allergies, but the allergies are not the cause of a rise in body temperature. Allergies are known to cause sneezing, watery eyes (link to watery eyes), sinus pain, and hives (urticaria), just to name a few, but they do not give you a fever.

Adults and kids that are experiencing a fever with seasonal allergies, may be suffering from allergies and an illness at the same time.

Why do my allergies give me a fever?

Allergies do not directly give us fevers, but in some instances, we may indirectly develop a fever. For example, if your allergy symptoms develop into a sinus infection, you may develop a fever from the sinusitis.

Allergies and fevers fact. Fact: Allergy symptoms may lead to a sinus infection, which can cause fevers.

The ACAAI explains that sinus infections commonly present fevers as a symptom. I have also created an in-depth article, “Sinus Infection vs Allergies: What is the Difference?“, which covers in great detail the difference between these two conditions.

Can allergies cause fever and chills?

No, allergies cannot cause a fever or chills. Allergies typically cause sneezing, itchy eyes, coughing, runny nose, hives, and so forth. Illnesses or infections tend to cause fevers and/or chills.

How to treat a fever at home

Tips for treating a fever at home. Stay hydrated, get plenty of rest, and consider over-the-counter fever reducers.

There are a few things you can do to treat a fever at home. Drink plenty of fluids, especially water, to help cool your body down. You can also take over-the-counter medications like ibuprofen or acetaminophen to help reduce your fever. And finally, make sure to get plenty of rest. This will allow your body to focus its energy on fighting the infection and recovering from the fever.

If your fever is very high or lasts longer than a few days, be sure to seek medical attention, as it may be a sign of a more serious condition.

Next up:

Most likely your allergies are not causing you get get a fever, but Can Allergies Cause Swollen Lymph Nodes?

By Chris

Chris is the creator of Allergy Preventions. As an allergy sufferer himself, his vision is to help others find relief from allergies. By combining his 14 years of Public Health experience, personal experience, and his thirst for knowledge, he is dedicated to providing quality recommendations to assist families with allergy symptom relief.