Rheumatoid arthritis of the patient’s arm may be closely related to group A streptococcal infection, there is no best treatment, you can under the guidance of the doctor, general treatment, and drug treatment. 1. General treatment: patients need to pay attention to keep warm, avoid moisture and cold, but also pay attention to bed rest, avoid excessive activity of the diseased joints. 2. Drug treatment: under the guidance of the doctor, treatment can be carried out through the use of anti-infective drugs, including erythromycin, benzylpenicillin and so on, but also through the treatment of non-steroidal anti-inflammatory drugs, commonly used drugs are ibuprofen, loxoprofen sodium and so on. It is recommended that patients go to the rheumatology and immunology department of regular hospitals and other related departments, under the guidance of doctors, carry out examinations, and according to the results of the examination, targeted treatment.