Patients with rheumatoid arthritis, if treated reasonably and formally, can achieve clinical remission, so in this sense, rheumatoid arthritis is not severe. However, if patients do not adhere to formal treatment for a long time, after a long period, they may develop joint deformities and ankylosis, resulting in disability. From this perspective, rheumatoid arthritis should be taken seriously. Commonly used drugs for treating rheumatoid arthritis include anti-inflammatory pain relievers, with non-steroidal pain relievers being the most commonly used, such as sustained-release diclofenac sodium tablets. The most important step in treating rheumatoid arthritis is the selection of immunosuppressants, with common immunosuppressants including methotrexate and leflunomide. (Medication should be used under the guidance of a doctor based on specific circumstances.)