A member asked:

What are seasonal allergies? why do we experience symptoms only during specific periods of the year?

A doctor has provided 1 answer
Dr. Michael Zacharisen answered

Specializes in Allergy and Immunology

Pollen: Seasonal allergies are caused by exposure and symptoms from plants that pollinate during different seasons of the year. Trees pollinate in spring, grass pollinates in early to mid summer and weeds from late summer to fall. The seasons depend on the part of the country a person lives in. When these billions of pollen grains in the air come into contact with people, allergy symptoms occur.

Answered 12/10/2013

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