Psoriasis is psoriasis, and Chinese medicine discriminatory treatment of psoriasis should be based on clinical manifestations as well as disease stages. The common clinical stages of psoriasis are progressive, resting and recovery stages. The criteria for identifying the three stages are as follows: 1. Progressive stage: as the skin lesions are developing and progressing rapidly, the skin lesions gradually increase, the color of the skin lesions is red, and the itching that the patient feels is also serious, at this time, the identification is blood-heat evidence, and blood-heat evidence is common in this stage; 2. Quiet stage: the development is slow and no new skin lesions are added. The patient’s symptoms are stable, and the color of the base of the lesions is light red, which is often referred to as blood dryness, and can be treated as blood deficiency and wind dryness. The treatment of psoriasis depends on the different stages of the disease and the patient’s different clinical manifestations, and the treatment of psoriasis depends on the individual.