Allergic reactions to medications are extremely common. However, true allergic reactions to medications only occur in about 10% of all adverse drug reactions. There are two kinds of allergies. The first one is not an allergy but is a sensitive reaction to the medication, which is the most common. The second type is a true allergic reaction, which is rare, but can be serious and dangerous (mortal). Non-steroidal anti-inflammatory drug (NSAID), including ibuprofen, aspirin, and naproxen, can cause allergic flares of hives and facial swelling, itchy and watery eyes, worsen asthma
, breathing difficulty, and result in anaphylaxis. NSAID or ibuprofen sensitivity is common, especially if you have asthma or sinus problems
. A true ibuprofen allergy that occurs when your immune system overreacts to the drug, however, is rare. I think it is likely that you are sensitive to ibuprofen. These signs and symptoms usually occur within a few hours of taking the medication. Since you've had a reaction, you should avoid ibuprofen in the future, as well as other NSAID (i.e., aspirin and naproxen, which are chemically similar to ibuprofen). In general, I would suggest Tylenol (acetaminophen) to be substituted as a pain reliever but you should look for the generic without titanium dioxide addictive. Having said all of this, it is impossible to assess your condition properly on-line with a brief history. Therefore, I would recommend an in-person consultation with a primary care doctor
who can assess your drug reactions more thoroughly.