Furazolidine Induced Erythema Multiforme

Erythema multiforme induced by acetaminophen: a recurrence at distant sites following patch testing

“…Although it has lower sensitivity than an oral challenge, patch testing is advisable as the initial diagnostic method because of a reduced risk for the patient (5). Acetaminophen is commonly used, but previously reported cases of EM caused by acetaminophen use are relatively rare (6, 7). In addition, there have been no previous case reports of EM developing after acetaminophen patch testing.…”