Facebook Pixel

Hay Fever Causes & Risks

Causes

An allergic reaction occurs when your body's immune system overreacts to an allergen. When you breathe in an allergen, cells in your nasal passages make a chemical called histamine. Histamine causes your nose to feel itchy and also causes swelling and mucus production in the nasal passages.

Site of Histamine Production

Nasal passage
This area has swelling and increased mucus production after contact with an allergen.
© 2009 Nucleus Medical Art, Inc.

Risk Factors

These factors increase your chance of developing allergic rhinitis. Tell your doctor if you have any of these risk factors:

Please be aware that this information is provided to supplement the care provided by your physician. It is neither intended nor implied to be a substitute for professional medical advice. CALL YOUR HEALTHCARE PROVIDER IMMEDIATELY IF YOU THINK YOU MAY HAVE A MEDICAL EMERGENCY. Always seek the advice of your physician or other qualified health provider prior to starting any new treatment or with any questions you may have regarding a medical condition. Copyright © 2019 EBSCO Publishing All rights reserved.

The Latest in Hay Fever Causes & Risks

ASK Your Health Question

It's FREE and you'll get a response within 24 hours

ASK

POST Info, Tips & Stories

Inspire others to learn from your experiences. Tell your story!

POST
Get Email Updates

Related Checklists

Health Newsletter

Receive the latest and greatest in women's health and wellness from EmpowHER - for free!