Psoriatic arthritis can be treated with medication, surgery and general measures to improve the prognosis. 1. Drug treatment: patients with psoriatic arthritis can take oral non-steroidal anti-inflammatory drugs, such as ibuprofen, celecoxib, etc., or oral immunosuppressants, such as methotrexate, lumefantrine, etc., or biologics can be used under the guidance of doctors. Most of the patients can control the inflammation through medication, which can improve the symptoms of the disease and promote the recovery of the disease. 2. Surgery: If patients have joint deformities and functional disorders, surgical treatment, such as arthroplasty, can be adopted. It can restore the function of ligaments, muscles and other soft tissues that control joint movement, thus improving the prognosis. 3. General measures: During the treatment period, patients need to ensure sufficient rest time for local joints and avoid overwork. Attention should be paid to the functional exercise of joints to maintain the functional status of the diseased joints. At the same time, patients need to maintain a positive and optimistic mindset, do not have a negative mindset. Once diagnosed with psoriatic arthritis, patients need to actively cooperate with doctors to take relevant treatment measures to avoid delaying the condition.