The phrase “looking for the San Jiao” means that difficult and complicated diseases can be treated from the San Jiao, emphasizing the important role of the governance of the San Jiao in the treatment of difficult and complicated diseases. Specifically, the San Jiao refers to the upper, middle and lower San Jiao, one of the six viscera, the San Jiao has the physiological function of the passage of vital energy and the operation of water and liquid. The main physiological function of the epiglottis is to promote Wei Qi, dissemination of water and grain essence to nourish the body; the middle jiao is the pivot of the gas elevation, the source of qi and blood biochemistry; the lower jiao Tibetan essence and blood, for the rise of the root of the yuan qi, in addition to the excretion of dregs and urine. San Jiao range is wide, the role is also extensive, difficult and miscellaneous diseases to find San Jiao is designed to show that the treatment of difficult and miscellaneous diseases from the San Jiao can be effective, but not absolute. If there is any discomfort, please consult a doctor in time and standardize the treatment under the doctor’s guidance.