The exact location of Hand Sanli is two inches below the elbow cross stripe on the forearm, on the line between Quchi and Yangxi. It has the effect of clearing the bowels, dredging the meridians and channels, and subduing swelling and relieving pain (eliminating swelling and pain). Hand Sanli is located on the large intestine meridian and at the elbow, so it can be used to treat elbow disorders such as arm weakness, numbness, pain, and inflexibility; gastrointestinal disorders such as diarrhea and abdominal pain; and febrile disorders such as swollen and painful gums and swollen and painful cheeks. The therapeutic effect of Hand Sanli alone is limited, and it is necessary to select other acupuncture points to be paired with it through diagnosis in order to maximize the therapeutic effect. External treatments such as acupuncture need to be operated by a regular doctor, and should not be done on your own to avoid accidents and discomfort, it is recommended to go to the hospital in time.