The Tiger’s Mouth point, also known as Hegu point, is located on the back of the hand, between the 1st and 2nd metacarpal bones and at the midpoint of the radial side of the 2nd metacarpal bone. Massaging the Hegu point is an acupoint of the Hand Yangming Large Intestine Meridian, which can treat toothache, headache and stomach distension. 1. Treating toothache. Massaging Hegu point has the effect of clearing heat and diarrhea (removing heat and fire from the body), which can treat symptoms such as gum pain caused by heat. 2. Treatment of headache. Massaging Hegu acupoint has the effect of clearing heat and relieving surface, and can treat headache caused by external wind-heat and Qi-blood disorder. 3. Treating epigastric (abdominal) pain, vomiting and constipation. Massaging Hegu acupoint has the effect of regulating the spleen and stomach and regulating qi, and can be used to treat gastric distension and other diseases. The selection and operation of the acupoints should be carried out under the guidance of a professional physician to avoid adverse consequences.