What you describe sounds like a fairly severe allergic reaction to Motrin® (ibuprofen). There is cross-reactivity between Motrin® (ibuprofen) and aspirin. Many individuals are allergic to aspirin and many of those will cross-react to Motrin® (ibuprofen) or similar drug in the same way they would react to aspirin. You were fortunate that Benadryl® (diphenhydramine) was effective in curbing this attack. You should not take aspirin, Motrin® (ibuprofen) or any of the other so-called non-steroidal anti-inflammatory drugs (NSAID) like Motrin® (ibuprofen) since the likelihood of a recurrence is high. Also, you should not assume that Benadryl® (diphenhydramine) will work as well next time, should you take one of those drugs.
You should seek consultation with an allergist. There is a group of drugs, called anti-leukotrienes, which can attenuate allergic reactions such as the one you had but they are far from completely effective. Aspirin desensitization is often effective.
Bottom line -- you are at high risk of a severe allergic reaction and should not subject yourself to that risk.
people with asthma often react with increased swelling in throat to NSAIDs like advil and aspirin . try tylenol instead . do you have asthma?
This too happened to me. I suffer from Dysmenorrhea, and whilst at work one night, I started to cramp. The only thing available to me was a bottle of Advil, so I took 2. Everything seemed to be getting better for about a minute, then I started to get dizzy.. my throat started to swell, and I started having trouble breathing. Needless-to-say, I promptly left work and was (thankfully) able to drive myself to the emergency room. Not only that, taking the Advil seemed to elevate my Dysmenorrhea symptoms. I've taken Tylenol, Motrin, & generic Ibupropen tablets before.. and nothing remotely similar has ever happened. Strange, indeed.