Have mild hives after ibupro&aspirin. does this mean i'm sensitive as opposed to a true alrgy? must i avoid things like pepto? reaction is so minor.

NSAID allergy: I would not dismiss hives as minor, they can lead to an anaphylactic reaction if the reaction progresses. If you already have hives to 2 nsaids i would avoid all nsaids, including anything that has minor amounts of them, please be careful and inform your doctors of your allergy too.

Aspirin Allegy: Since you develop hives (urticaria) after taking both Aspirin and ibuprophen, which are nsaids, it certainly sounds like you have a true allergy (also known as hypersensitivity) to this class of drugs. I would avoid taking any meds containing Aspirin (salicylates) and other nsaids. This include pepto-bismol. Avoiding these products is the best defense against a more serious allergic reaction.