Introduction: Stevens Johnson syndrome is a set of mucocutaneous immune-mediated manifestation arising mostly from the delayed hypersensitivity reaction to certain drugs such as sulfa derivatives, allopurinol, and carbamazepine. They can also occur due to an infection or as a result of the tumor. The lesions are preceded by a prodromal period, similar to a viral condition that lasts about a week. Lesions are variable and may lead to peeling of the epidermis and secondary infections. They primarily affect trunk and face after 1 to 3 weeks of beginning of a new drug.