Ordinary psoriasis is generally divided into mild and moderate to severe, which can be controlled by general treatment, medication and physical therapy. 1. Mild psoriasis: For patients with mild psoriasis, it is necessary to keep the skin moist and avoid dryness to avoid aggravation of the condition. Patients can use topical glucocorticosteroids such as trimethoprim and halometasone, which have the effect of immunosuppression. You can also choose excimer laser, UVB phototherapy lamp and other ways to control the condition. 2. Moderate and severe psoriasis: For moderate and severe psoriasis, patients can take methotrexate, cyclosporine and other immunosuppressants, which can play the role of immunosuppression. Injections of biological agents such as etanercept and adalimumab can also be used to control the condition. For patients with psoriasis vulgaris, it is recommended to go to regular hospitals for consultation and examination, and under the guidance of doctors, choose the appropriate treatment to control the condition according to the severity of the disease.