Conservative treatment with oral medications is recommended for mild synovitis. For patients with more severe swelling of the joints, intra-articular injections of corticosteroids and sodium vitrate can be used. Corticosteroids reduce inflammation in the joint cavity, and sodium vitrate protects synovial cells, lubricates the joint, and has anti-inflammatory properties. The joint cavity injection can be used to remove the fluid from the joint cavity. By removing the fluid and injecting it into the joint cavity, the symptoms can be quickly relieved and the patient’s pain can be alleviated.