Zhongquan point is located in the posterior region of the forearm, on the dorsal distal transverse line of the wrist, in the depression on the radial side of the tendon of the common extensor digitorum brevis. Zhongquan is an extra-meridian qi point, and its specific location is on the transverse line of the wrist on the back of the hand, at the midpoint of the line connecting Yangchi point and Yangxi point. Since this point has the function of broadening the chest and regulating qi, harmonizing the stomach and relieving pain, appropriate acupuncture or pressure stimulation of this point can relieve stomach and epigastric pain, distension and pain of the chest and ribs (collectively referred to as the chest and ribcage area) to a certain extent, as well as discomfort symptoms such as heat in the middle of the palm. Due to the high professional requirements of acupuncture points and acupuncture operation, in order to ensure the full play of the therapeutic effect of acupuncture and the health and safety of the patient, when discomfort needs to be treated, it is best to be operated by a professional doctor, and not to operate by yourself, so as to avoid serious adverse consequences due to the wrong acupuncture points or improper operation.