Some people believe that allergies can cause a fever, but that isn’t true!

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Sign of Allergies

Hay fever (also called allergic rhinitis) is a common allergy, and despite the name, it isn’t a reaction to hay and doesn’t cause a fever.

Hay fever symptoms include a runny or stuffy nose, and an itchy mouth, eyes or skin. Many people experience it seasonally because they are sensitive to airborne mold spores and pollens from grasses, trees and other plants. Others experience symptoms year-round, caused by environmental allergens like dust mites, pet dander and cockroaches.

If you’re experiencing a runny or stuffy nose and a fever, you may have a sinus infection. Sinus infections are caused by bacteria or viruses, not by allergies.

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See your doctor to determine the cause of your fever. It may be an infection. If you suffer from sinus infections, see your allergist.

If you have a fever that won’t go away, stiffness in your neck, severe headaches or a change in eyesight, seek immediate medical attention.

It Could Be…

Fever is not a symptom of allergies. Consult with your doctor to determine what might be causing your fever, such as:

  • Bacterial or viral infection
  • Extreme sunburn
  • Heat stroke
  • Inflammatory conditions like rheumatoid arthritis
  • Some immunizations
  • Some medications