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KathiG
KathiG
Hay fever
Category: Gardening
Description:
Hay fever is an immune disorder characterized by an allergic response to pollen grains and other substances. Also known as allergic rhinitis, there are two types: seasonal, which occurs only during the time of year in which certain plants pollinate, and perennial, which occurs all year round. (A related problem, nonallergic rhinitis, shares symptoms with hay fever but isn't caused by allergies.) Typically, if you suffer from hay fever in the spring, you're probably allergic to tree pollens. ...

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