The exact location of Hegu acupoint is on the back of the hand, between the 1st and 2nd metacarpal bones, when the midpoint of the radial side of the second metacarpal bone. It has the effects of calming and relieving pain, promoting blood circulation and circulation of menstruation, clearing heat and relieving symptoms. It is used for fever and headache, redness and swelling of the eyes, epistaxis (nosebleed), toothache, crooked mouth and eyes, and stomachache. Hegu point belongs to the Hand Yangming Large Intestine Meridian. This point is located on the back of the hand, between the 1st and 2nd metacarpal bones, when the midpoint of the radial side of the second metacarpal bone. It has the efficacy of calming and relieving pain, activating blood circulation, clearing heat and relieving symptoms. It is used in treating fever and headache, eye redness and swelling, epistaxis, sore throat, toothache, crooked mouth and eyes, hemiplegia (inability to move one side of the limb freely), stomachache, abdominal pain, dysmenorrhea, amenorrhea, itchy skin and other diseases. Clinical combinations of Hegu acupoints include: with cheek car acupoints and Yingxiang acupoints to treat toothache, facial pain, facial paralysis, headache, fever, etc.; with Taichong acupoints to treat epilepsy, headache, vertigo, hypertension; with Fengchi acupoints and Daxi acupoints to treat itching of the skin, urticaria, boils, malaria; and with Sanyinjiao acupoints to treat menstrual disorders, dysmenorrhea, menorrhagia, amenorrhea, etc. If you need to carry out acupuncture or moxibustion operations at Hegu points, you should go to a regular hospital and be operated by a professional doctor, do not blindly operate on your own to avoid causing serious adverse consequences.