medication allergy on white paper

medication background allergy white paper drug reaction immune system hypersensitivity adverse response symptoms rash hives anaphylaxis itching swelling breathing difficulty anaphylactic shock epinephrine treatment diagnosis testing skin test blood desensitization avoidance management cross-reactivity penicillin antibiotics nsaids aspirin sulfa medications anticonvulsants chemotherapy agents over- -counter prescription herbal supplements side effects intolerance sensitivity pseudoallergy reporting