In clinical practice, if a patient has a strained deltoid muscle, it is mainly a strain of the deltoid muscle in the shoulder, caused by direct or indirect external forces. After a deltoid strain, the patient should first be instructed to rest in bed, brake the shoulder, and apply cold compresses within 24 hours of the injury to accelerate capillary constriction in the deltoid muscle, reduce bleeding and swelling, and apply hot compresses after 24 hours. Apply local ointment to activate blood circulation and remove blood stasis, or cooperate with physical therapy such as acupuncture, moxibustion and acupuncture point herbal iontophoresis to improve local blood circulation and make the injured muscle recover as soon as possible. You can also take oral bruising drugs, such as bruising pills, etc. Therefore, after the clinical deltoid strain, patients should not dispose of themselves and should not massage blindly, so as not to aggravate the injury, but should give the correct treatment after the doctor’s diagnosis, in order to make the deltoid strain recover as soon as possible.