SJS usually lasts four to six weeks and can be complicated by electrolyte imbalance, dehydration, secondary infections, and severe pneumonitis. Large areas of denudation can cause scarring leading to contractures. Ocular complications include corneal scarring, pseudomembrane formation leading to immobility of the eyelids, and lacrimal duct scarring. Lesions of the oral mucosa usually heal without complications. Esophageal or anal involvement can lead to strictures, and vaginal or urethral mucosal lesions can cause stenosis.
SJS can cause significant morbidity; the mortality rate is as high as 30% (12). If appropriate symptomatic treatment is given, the morbidity and mortality rates are lower (14).
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