Biological agents can effectively control the condition of psoriasis, alleviate the lesions, and maintain no recurrence for a short period of time, but it cannot be completely cured, and psoriasis may still recur. Psoriasis, is a chronic inflammatory skin disease under the joint action of genetic and environmental factors, the cause of the disease is still unclear, the current treatment modalities are: 1. Topical medication. Including glucocorticoids, retinoids, calcium-modulated phosphatase inhibitors and so on; 2. Systemic drug therapy. Including glucocorticoids, immunosuppressants, biological agents, etc; 3. Physical therapy. Such as photochemotherapy, UVB phototherapy and so on. It is recommended that psoriasis patients, pay attention to rest, maintain balanced nutrition, in order to reduce recurrence; also follow the doctor’s instructions for treatment, regular review, if there is any change in the condition, timely consult a doctor.