Erythema multiforme associated with superficial fungal disease.

An extremely rare case of erythema multiforme associated with dermatophytosis by Trichophyton rubrum infection was reported in a 19-year-old woman. She had a reddish plaque resembling annular ringworm on her left arm. Treatment with an antifungal cream (clotrimazole) on the infected site cleared the condition in three weeks. Spontaneous regression of erythema multiforme in different parts of the body was recognized when the ringworm infection resolved. In recent years, only two cases have been reported in the English literature.