Periarthritis of the shoulder refers to the symptoms of local pain and restricted movement caused by aseptic chronic inflammatory reactions in the tendons, ligaments, and joint capsules around the shoulder joint. Appropriate immobilization and rest are necessary when periarthritis of the shoulder occurs, and physical therapy methods such as infrared lamps and physiotherapy can be used to alleviate the local inflammatory response. It is also important to perform appropriate functional exercises to prevent the shoulder joint from becoming stiff due to prolonged immobilization. If the pain symptoms are severe, non-steroidal anti-inflammatory pain relief medications can be chosen for symptomatic treatment to relieve pain. (Medications should be used under the guidance of a doctor.)