do not occur until after one month, but after 24 hours in the case of repeated infestation. Infection is caused only by female mites, and the larvae can be transmitted only by intimate contact with an infested person. Patients who wash regularly are unlikely to have mites under the skin. Treatment is with an ointment, repeated on the next day. Bedding and clothes must also be cleaned, and the patient should wash thoroughly in the evening. Although the itch may persist for some weeks, the above treatment should have killed the mites.