Infusion can treat frozen shoulder, but it is generally recommended to be given only after the acute inflammatory edema stage, when there is obvious redness, swelling, heat and pain, and dysfunction of joint movement. Mild frozen shoulder can be cured by itself, and in moderate cases, it can be cured by oral medication or local physical therapy. If there is obvious redness, swelling, heat and pain, and joint dysfunction, then the frozen shoulder is more serious and can be treated with infusion. Common infusion drugs such as penicillin, mainly anti-inflammatory and pain relief, can be very good to improve the circulation of the shoulder joint, promote the inflammatory response to subside, reduce the fluid in the joint cavity, alleviate some of the symptoms of inflammatory reaction, usually can play a better therapeutic effect. Infusion therapy in the acute phase can quickly and effectively relieve pain and activity limitation and other related symptoms, and can be helpful in preventing the aggravation of periarthritis and the emergence of soft tissue adhesions. Local push or intravenous lysergic acid can also be given to eliminate local aseptic inflammation, and at the same time can achieve the effect of pain relief. Dexamethasone, a glucocorticoid drug, can enhance the anti-inflammatory effect and have a certain effect on relieving the local joint aseptic inflammation. Whether or not infusion is needed for frozen shoulder needs to go to a specialized hospital and be judged by the doctor after completing relevant examinations.