Objective: To evaluate the efficacy and safety of clobetasol propionate compound ointment(containing 0.05% clobetasol propionate and 0.025% tretinion) for treatment of psoriasis vulgaris.

• 目的:观察复方丙酸氯倍他索软膏(含0.；05%25丙酸氯倍他索和0