A member asked:

How long should it take a prednisone shot to work for hives?

A doctor has provided 1 answer
Dr. Doanh Nguyen, md, faaaai answered

Specializes in Allergy and Immunology

Hive treatment: In general, it will take a couple of hours since Prednisone needs time to suppress the production of histamine. On the other hand, antihistamine works faster. It suppresses the hives itself. Your doctor would decide which medication works best in your situation.

Answered 1/10/2020

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