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What is hay fever?

Hay fever, or allergic rhinitis, is a common allergic reaction to certain particles breathed in through the nose. During spring and summer, symptoms tend to be triggered by pollen from grasses, trees and weeds. In contrast, hay fever that occurs all year round is usually due to other airborne particles, such as mold, dust mites or animal hair.

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Author: Dr Joanne Van der Velden PhD, BSc (Hons)
First answered: 18 Sep 2014
Last reviewed: 14 May 2019
Rating: 4.5 out of 5
Votes: 648 (Click smiley face below to rate)
Category: Pink eye


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