The treatment methods of rotator cuff infection include the following: first, non-surgical treatment, acute episodes should reduce shoulder activities, avoid shoulder joint abduction and weight bearing. Early shoulder physiotherapy, such as ultrashort wave and microwave therapy. Make the patient stand up, bend down, and hang down, and do shoulder rotation, left and right, and forward and backward swinging movement. When the pain is severe, you can take oral non-steroidal anti-inflammatory drugs to relieve pain, or you can choose closed injection treatment, a mixture of lidocaine hydrochloride and trimethoprim for local closed injection, which can quickly relieve pain and reduce the inflammatory response; second, surgical treatment, if the symptoms don’t get better in two months of conservative treatment, you should consider that there is a serious damage to the rotator cuff, and you need to be treated by arthroscopic surgery to restore the rotator cuff function. Secondly, surgical treatment.