A 40-year-old female asked:
if i have a true allergic reaction to benadryl (diphenhydramine) will i be allergic to all antihistamines, like zyrtec?
1 doctor answer • 3 doctors weighed in
Allergy and Immunology 51 years experience
5.1k viewsReviewed >2 years ago
Last updated Sep 30, 2019
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