Delayed-type drug eruption to phenazopyridine (pyridium) confirmed with patch testing.

Winnie W Y YeungChristina S M WongWai-Yan LeungPhilip Hei Li

Published in: Asia Pacific allergy (2022)

Delayed hypersensitivity reaction of penicillin is commonly seen, but never reported in pyridium. This case illustrates a patient with delayed hypersensitivity reaction after the use of augmentin and pyridium. Skin patch test, surprisingly, confirmed pyridium delayed hypersensitivity.

Keyphrases

drug induced
emergency department