Considering synovitis, frozen shoulder or rotator cuff injury, etc., the fluid accumulation of frozen shoulder can be treated with medication, physical therapy or surgery. 1. Synovitis: Avoid doing tiring work, apply hot compresses or ultrasonic physiotherapy to promote the absorption of fluid, and apply medicines to promote blood circulation and reduce swelling, such as oral synovitis granules. 2. Frozen shoulder: Tui na massage, ultrasonic physiotherapy or deep heat therapy can be performed, and rehabilitation exercises can be performed. Oral non-steroidal anti-inflammatory drugs, such as nimesulide dispersible tablets or diclofenac sodium enteric-coated tablets. 3. Rotator cuff injury: if the injury is more serious with shoulder joint activity limitation, you can take arthroscopic repair of the damaged tendon, two weeks after the operation, rehabilitation exercise. Therefore, frozen shoulder fluid should be timely medical treatment, specific treatment should be carried out under the guidance of the doctor, do not blindly use drugs.