Psoriasis is psoriasis, and the treatment of psoriasis on the back includes topical medication, physical therapy and oral medication. 1. Topical drug treatment: patients with psoriasis on the back are recommended to use glucocorticoid drugs such as dexamethasone and hydrocortisone externally, which can play the role of anti-inflammatory, immunosuppressive and anti-itching. You can also use topical medications such as capotriol ointment and tazarotene gel, which have a better effect on the disease. 2. Physical therapy: patients can also combine narrow-spectrum medium-wave ultraviolet radiation (NB-UVB) to treat the disease, through ultraviolet irradiation of the local area, helps to reduce inflammation and control the disease. 3. Oral medication: For patients with moderate to severe psoriasis, it is recommended to take oral medication such as Avitamin A, cyclosporine and methotrexate, which have anti-inflammatory and immunosuppressive effects, and help to improve the disease. The treatment of psoriasis on the back is not unique, and it is recommended that patients go to regular hospitals and cooperate with doctors to carry out standardized treatment. The medication should be used in accordance with the doctor’s instructions.