Disclosed are a composition and a method for treating skin disorders,including rosacea,pityriasis rosea, erythema, rhinophyma, and rosacea-associated disordersincluding pimples,papules, pustules, and telangiectasia. The composition includes an effectiveamount of ahistone hyperacetylating agent selected from the group consisting oftrichostatin A, valproicacid, 4-phenylbutyrate and a pharmaceutically acceptable salt thereof.