Erythema Multiforme — Definition and Treatment

Erythema multiforme (EM) is a type of cytotoxic dermatitis, which can be triggered by many factors; mainly herpes simplex infection and drugs being the implicating factors. Although it is self-limiting, recurrences are common. In this article, definition, epidemiology, aetiology, pathology, pathophysiology, symptoms, diagnosis, differential diagnosis, therapy, prognosis and progression of EM will be discussed.