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A member asked:
How does benadryl (diphenhydramine) help reduce allergy symptoms?
5 doctors weighed in across 2 answers
Reduces histamine: It decreases the amount of chemicals, such as histamine( hence it is an antihistamine), an allergic person's body produces in response to allergens, which could be anything from pollen and pet dander to substances which cause skin rashes.
Answered 12/5/2014
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Show 1 more comment
Antihistamines: It blocks the histamine receptor.
Answered 11/7/2012
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