A member asked:

Is it possible to get "rebound" side effects from stopping an antihistamine? i've been taking one for 5 months, and have sinus problems since stopping

A doctor has provided 1 answer
Dr. Joram Seggev answered

Specializes in Internal Medicine - Allergy & Immunology

You probably need it: Rebound to cessation of antihistamines would be unusual, . If you took a combination antihistamine/decongestant, it would be more common. However, you had been taking an antihistamine for 5 months. Had you taken it for a nasal problem? My hunch is that your nasal/sinus problem, for which you had taken the antihistamine in the first place, recurred the moment you stopped it.

Answered 3/23/2014

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