A case of a patient with alopecia areata treated with diphencyprone, which produced contact dermatitis in the scalp, with later total regrowth is presented. After 4 months, patient presented a very intense hair loss compatible with telogen effluvium. The author calls attention for the possibility of telogen effluvium after contact dermatitis, once the production of the contact dermatitis is one of the choice treatments for alopecia areata.
Alopecia; Hair; Dermatitis