Psoriasis, commonly known as "psora", is a common non-infectious, easy to relapse erythema scaly skin disease. Psoriasis can occur in different parts of the body. The main clinical manifestations are infiltrative erythema and silvery white scales, often involving hair, toenail and other parts, with varying degrees of pruritus. The Department of Dermatology focuses on traditional Chinese medicine treatment. According to different clinical manifestations, we adopt treatments integrating inside and outside, treat with syndrome differentiation, use specific internal medicine and external preparation, and combining with the unique external treatment of traditional Chinese medicine, such as wet application of traditional Chinese medicine water, external application of traditional Chinese medicine ointment, dip bath therapy of traditional Chinese medicine, acupuncture cupping and acupoint application, which have very good therapeutic effect on infiltrative erythema, scales and other skin lesions, and relieve the itching discomfort and other symptoms. Combining with photoelectric therapy, it can repair the skin barrier function, achieve the purpose of improving symptoms and delaying recurrence.