Table 1.

A summary of the well-documented trigger factors for Erythema multiforme identified in Sokumbi et al. and Huff et al. [1,4].

Trigger Factors for EM
Bacterial infections	Mycoplasma pneumoniae Yersinia enterocolitica Mycobacterium tuberculosis
Viral infections	HSV (types 1 and 2) Hepatitis C Virus Epstein–Barr Virus Influenza Virus Cytomegalovirus
Fungal infections	Histoplasma Candida (vulvovaginal candidiasis)
Medications	NSAIDs Antiepileptics Sulfonamides Antibiotics Penicillins
Other conditions	Inflammatory bowel disease Complex apthosis Malignancies Menstruation Benzoic acid consumption Polymorphous light eruption