<prompt> One of the followingis the tt of choice for dermatitis herpetiformisCoicosteroidsDapsoneMtxRetinoids  <response>: oral dapsone is the main therapy used for dermatitis herpetiformis. 100-200 mg daily and gradually decreased to a maintenance dose of 50 mg daily.page no.286. Reference IADVLs concise textbook of dermatology 