Seborrheic dermatitis is acute or choronic inflammatory diseasa frequently caused by herediary factor, endocine abnormality, alchol, etc. It is similar to Myunyoupung in Oriental Medicine. Under the assumption that Sopung-san and Cheongsangbangpung-tang may be effective for treatment seborrheic dermatitis. The symptoms including erythematous plaque, scale, itching were resolved clearly by Sopung-san and Cheongsangbangpung-tang. Sopung-san and Cheongsangbangpung-tang are effective in the treatment of seborrheic dermatitis. if more clinical trials like this are proved to be effective in seborrheic dermatitis, we can expect that Sopung-san and Cheongsangbangpung-tang are used to treatment of seborrheic dermatitis as good method.