RT Book, Section A1 Castelo-Soccio, Leslie A2 Zaoutis, Lisa B. A2 Chiang, Vincent W. SR Print(0) ID 1146115892 T1 Erythema Multiforme T2 Comprehensive Pediatric Hospital Medicine, 2e YR 2017 FD 2017 PB McGraw-Hill Education PP New York, NY SN 9780071829281 LK accesspediatrics.mhmedical.com/content.aspx?aid=1146115892 RD 2023/03/25 AB Erythema multiforme (EM) is a self-limited acute hypersensitivity reaction to a variety of inciting agents including medications, viruses, bacteria, and fungi. The cutaneous lesions of EM have been described for centuries, the current name having been adopted in 1866 by von Hebra.1 EM is characterized by an abrupt onset of red papules that progress to form target lesions.2