Wauconda, IL
A 32-year-old female asked:
What if i am concerned my hives are caused by an antihistamine in the first place? i.e. zyrtec and allegra (fexofenadine)
3 doctor answers • 5 doctors weighed in
Dr. Brian Novickanswered
Allergy and Immunology 45 years experience
Very rare : Hives usually come and go randomly. So you may confuse an outbreak with being caused by something else (though not really). So best to see an allergist.
Created for people with ongoing healthcare needs but benefits everyone.
5.5k viewsReviewed >2 years ago
Dr. Stevan Cordasanswered
Internal Medicine 59 years experience
Hives: That is rare. Especially if suspect it from claritin, (loratadine) allergra, benadry, and zyrtec. Sometimes you have to realize that we can't find a cause but there is a long list of causes.
Created for people with ongoing healthcare needs but benefits everyone.
5.5k viewsAnswered >2 years ago
Dr. Marianna Postanswered
Family Medicine 19 years experience
Go to allergy dr: Go to an allergy doctor and get tested. Usually if you take antihistamine and break out more you might suspect a reaction to antihistamine, but you won't know for sure unless it happens every time you take it, or you get an allergy testing.
Created for people with ongoing healthcare needs but benefits everyone.
5.5k viewsAnswered >2 years ago
1 comment
Dr. Steven Machtinger commented
Allergy and Immunology 46 years experience
As an allergy doctor I suggest that you stop the medication first. Wait a few days to see if hives go away 5 days is enough.
Nov 4, 2012
Last updated May 6, 2019
People also asked
Connect with a U.S. board-certified doctor by text or video anytime, anywhere.
24/7 visits - just $44!
50% off with $19/month membership
Disclaimer:
Content on HealthTap (including answers) should not be used for medical advice, diagnosis, or treatment, and interactions on HealthTap do not create a doctor-patient relationship. Never disregard or delay professional medical advice in person because of anything on HealthTap. Call your doctor or 911 if you think you may have a medical emergency.