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A member asked:

How long after i take claritin (loratadine) should my allergy swelling go down?

A doctor has provided 1 answer
Dr. Michael Zacharisen answered

Specializes in Allergy and Immunology

Couple of hours: Antihistamines can help with the itching and swelling that accompany allergic reactions. If the swelling is significant, it may take several hours to a day or so. For milder symptoms, Loratadine may begin to help in 1-2 hours.

Answered 12/9/2015

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