Systemic outbreaks of psoriasis can subside in about 6 months with effective treatment, but the rash is often difficult to clear completely. Treatment includes topical medication, oral medication and physical therapy. Psoriasis should be hospitalized as soon as possible, and the treatment includes ① topical medication: mainly applying emollients and corticosteroid preparations (e.g. fluticasone, mometasone furoate, etc.) to encapsulate the affected area. ② oral drugs: commonly used methotrexate, cyclosporine and so on. Physical therapy: Narrow-wave ultraviolet radiation can reduce inflammation and slow down epidermal keratinization. In addition to receiving treatment, patients also need to pay attention to strengthen nutrition, exercise, pay attention to warmth, prevent infection and other complications, psoriasis is a chronic inflammatory skin disease, easy to recur, need long-term care, patient treatment, specific treatment can consult a professional physician.