Elimination of psoriasis symptoms should be administered according to the condition. For mild psoriasis whose lesion area is less than 3%, topical glucocorticosteroids and calcium-modulated phosphatase inhibitors can be used alone, and when the lesion area is larger, it can be treated by physical therapy, oral retinoids, immunosuppressants and other drugs. 1. For mild psoriasis, when the area of skin lesions is less than 3%, external drug therapy is the main treatment, and moisturizing cream can be applied to effectively relieve itching and other symptoms, and external glucocorticosteroids such as mometasone furoate cream, halometasone cream, and calcium-modulated phosphatase inhibitors such as tacrolimus cream can also be used. 2. For moderate or severe psoriasis with large skin lesions, physical therapy such as medium-wave narrow-spectrum ultraviolet irradiation should be used, and systematic medication should be used during the period, commonly used medications include cyclosporine, methotrexate, especially for generalized plaque-type psoriasis with good effect, and retinoic acid medications, such as Avian A can be used orally according to the doctor’s instruction. The above medication should be used according to the doctor’s instructions, avoid self-medication, and recommend patients to go to the hospital in time, and standardize the treatment under the doctor’s guidance.