Help i've been taking off brand benadryl (diphenhydramine) for two years and now i am trying to quit so i haven't taken it for two days. i haven't slept in two night and my nose is so clogged i can't breathe! ?

Complex: Find allergist and ENT doctor who can help you with both problems.

OTC antihistamine: If there wasn't a medical reason for being off benadryl (diphenhydramine), (diphenhydramine) why not switch to a newer class of antihistamine like claritin, zyrtec, or allegra, all of which are otc like benadryl (diphenhydramine). If there is a medical reason to avoid antihistamines, then see your ENT to help open your nose up without addictive nasal sprays like afrin.