<prompt> Dapsone is NOT used in: March 2013Alopecia areataLeprosyDermatitis herpetiformisMalarial prophylaxis  <response>: Ans. A i.e. Alopecia areata Alopecia areata AA Non-cicatricial non scaring alopecia Exclamation mark sign is characteristic Clinical presentation: Single or multiple circumscribed smooth patchy hair loss, most obviously on scalp but frequently involving any hair bearing skin like beard, eyebrows, eyelashes, with pathognomic exclamation marks and going gray overnight phenomenon AA is treated by: Minoxidil 