Psoriasis vulgaris medically refers to psoriasis vulgaris, a chronic relapsing inflammatory skin disease, clinically manifested as dark red plaques and plaques covered with silver-white scales and other symptoms. The vast majority of psoriasis belongs to the common type. Ordinary psoriasis can be acute, but also can be gradually turned into chronic. The cause of psoriasis is still unknown, and it is now believed to be related to genetics, mental factors and infections. Clinical manifestations include punctate hemorrhages, white scales, and a shiny film. Ordinary psoriasis can be treated with topical or oral drugs, and physical therapy can also be used to improve the symptoms. Commonly used topical drugs include glucocorticoid drugs, such as mometasone furoate cream and retinoic acid drugs, such as retinoic acid cream, etc. Oral drugs include Avian A, methotrexate, etc., and narrow-spectrum medium-wave ultraviolet light can be chosen for physical therapy. Psoriasis patients should pay attention to the daily not to be nervous, not overworked, do not stay up all night, and the diet is mainly light. It is suggested that patients should consult the hospital in time and standardize the treatment under the guidance of the doctor.