The “Red Dragon Stirring the Sea”, also known as the “Swallowing and Saliva Nourishing Jin Method”, is one of the important health care techniques in traditional Chinese medicine. This method can nourish the kidney essence, strengthen the spleen and stomach, nourish the yin and replenish the deficiency, which coincides with the pathological mechanism of dry syndrome of yin deficiency and loss of nourishment of all orifices. Under the condition that there is no special treatment for dry syndrome at present, this method is a reasonable health care method. Saliva, commonly known as saliva, is a sticky liquid secreted by many salivary glands of different sizes deep in the oral mucosa. Modern medicine has confirmed that saliva contains lysozyme, vitamins, hormones, minerals, mucin, immunoglobulins and other active ingredients, which can help digestion, protect teeth, sterilize, anti-aging, detoxify, prevent cancer and so on. The specific method of operation: 1, knocking teeth: morning sitting on the bed, or sitting at leisure (not subject to time and place restrictions) natural relaxation of the limbs, eyes closed and mouth, remove distractions, mind and spirit, and then make the upper and lower teeth rhythmically knocking each other, clanging sound, the number of times is not limited. At the beginning of the exercise, you can tap about 20 times, as the exercise progresses, you can gradually increase the number of times and strength of knocking teeth, generally 36 times is appropriate. Strength can be determined by the health of the teeth. 2. Swallowing Jin: From the traditional Chinese medicine way of health care, the end of the knocking should be supplemented by the “Red Dragon Stirring Sea”, that is, after the knocking, stirring with the tongue in the mouth against the upper and lower dental beds and tooth surfaces, with a soft and natural force, first up and then down, first inside and then outside (with the tongue first from the inner side of the upper left dental bed to the right side, then the tongue then from the outer side of the upper right dental bed to the left side) Then, turn the tongue from the inner side of the lower left tooth to the right side, and from the outer side of the lower right tooth to the left side.) Stirring 36 times will massage the gums, improve local blood circulation and accelerate the nutritional blood supply to the gum area. When the feeling of fluid production, do not swallow and continue to stir, and so saliva gradually increased, the tongue against the palate to gather saliva, gargling with saliva rinse (drum rinse) several times, and finally in three Xu Xu swallow (gulp). 3, time and number of times: the above is a complete “pharyngeal saliva method”, whenever you do ten times is better, morning, noon and night each knocking teeth ten times, more better. The most important thing is to knock on the teeth in the morning, because after a night’s rest, the teeth will be somewhat loose, and knocking on the teeth at this time that consolidates the gums and periodontal tissue, and excites the dental nerve, blood vessels and dental pulp cells, which is good for dental health. The intrinsic relationship between saliva and the two organs of the spleen and kidney: saliva is the oral fluid, the thinner part of saliva; saliva is also the oral fluid, the thicker part of saliva. The spleen is in the fluid as saliva, and the kidney is in the fluid as saliva, so saliva is closely related to the spleen and kidney. The spleen is in charge of transportation and transformation and opens the mouth. The spleen has the physiological functions of digestion of food and drink, absorption of fine substances, production and distribution of nutrients. The fluid used to produce saliva is derived from the food and grain transported by the spleen. On the one hand, saliva is derived from the spleen, and on the other hand, it promotes the transport function of the spleen. Saliva welcomes food and grain, moistens food, and performs preliminary digestion of food. Saliva, as part of the body’s fluid, originates from the spleen and is subject to the spleen’s control. Saliva relies on the Spleen’s consolidation and gasification, and is constantly secreted in the mouth, neither overflowing out of the mouth because of more secretion when eating, nor losing moistening of the mouth and throat because of less secretion when not eating. Therefore, saliva is produced by the spleen and controlled by the spleen. The kidney is the master of water and plays an important role in presiding over and regulating the metabolism of human fluids. Human fluids depend on the vaporization of the essence in the kidney and the secretion and storage of the essence in the kidney for normal transmission and excretion and to maintain its metabolic balance. The spleen and the kidney are both organs of the main water, the kidney is the origin of the first day, and the spleen is the origin of the second day. The spleen’s function of healthy movement, production of essence and transmission of fluid must be warmed by the kidney yang, “spleen yang is rooted in kidney yang”. The essence of the kidney also depends on the continuous cultivation and enrichment of the water and grain essence in order to give full play to its physiological effects. The two support each other and promote each other. Therefore, saliva is regulated by the two organs of the spleen and kidney, Zhang Zhicong cloud “water and grain entrance, its taste has five, fluid each go its own way, five organs by the five grain of the Jin Nao injected in the external orifices and turned into five liquid, liquid, so fill the essence of the moisten the orifice also. The five liquids, the kidney is the water organs by the five organs of the essence and hide it, the kidney liquid into the heart and blood, into the liver for tears, into the lungs for tears, into the spleen for saliva, from the entry for saliva, is the five liquids are salty.” Clinically, salivary lesions caused by spleen deficiency can be associated with kidney if they are not cured for a long time, and kidney deficiency with more saliva and salivation is often accompanied by spleen deficiency symptoms. Although saliva and salivation are common to both the spleen and kidney, they are especially close to the spleen because they are produced in the spleen, which opens the mouth, and saliva is the liquid in the mouth, which helps digestion. The health care mechanism of Chilong Chouhai: 1, nourishing the kidneys and fixing the essence: the kidneys are the “essence of the first day”, the source of life. The mechanism of knocking on the teeth to strengthen the kidneys is twofold: first, the Chinese medicine Tibetan elephant theory that “the teeth are the remainder of the bone”, “the kidneys collect essence, the main bone marrow”. The teeth are fed by the essence of the kidneys. If the kidneys are full of essence, the teeth will be strong and not easy to fall off; if the kidneys are not full of essence, the teeth will be easy to loosen and even fall off early. Knocking on the teeth and massaging the gums with the tongue can promote microcirculation in the periodontal tissues, enhance the resistance of the teeth, strengthen the teeth and at the same time stimulate the kidney qi and replenish the kidney essence. The second is the kidney “in the liquid for saliva”, knocking on the teeth to promote the production of saliva, also known as “Jin Jin”. The word “Jin” is connected to “Jing”, which is the essence of the kidneys, and is swallowed without vomiting. The “Nei Jing Zhi Yao? Volume said: “The kidneys are the water organs ……, the life of the door between the two kidneys, up through the heart and lungs, open the orifice under the tongue to produce Jin. Jin and kidney water, the original family, pharyngeal return to the bottom of the pole, the reunion, both the way to the economy.” Therefore, the “red dragon stirring the sea” method has the wonderful use of nourishing the kidney and fixing the essence. 2, strengthen the spleen and stomach: the spleen and stomach is “the essence of the posterior, the source of Qi and blood biochemical.” “All diseases are caused by the spleen and stomach failure”. The spleen and stomach can be strengthened by knocking on the teeth in two ways: first, knocking on the teeth can strengthen the teeth. The second is that the spleen “in the liquid for saliva” and the stomach, saliva is the lighter and thinner part of the saliva, with the function of helping the digestion of food. The saliva is produced by knocking on the teeth and swallowing it helps the stomach to “cook the water and grain (food and drink)” and the spleen to “transport, transform and clear” (transforming the water and grain into fine substances and “irrigating the four sides” and spreading them throughout the body ), reduce the burden of the spleen and stomach, and achieve the purpose of strengthening the spleen and stomach. The application of Chilong churning sea in dry syndrome: Dry syndrome is a chronic autoimmune disease mainly involving the exocrine glands of the whole body, mainly manifesting as dry mouth and dry eyes, which can involve the respiratory, digestive, urinary, blood, nervous and other systems as well as muscles, joints and other tissues, causing damage to multiple systems and organs. Dryness syndrome is a modern medical name, which is not recorded in ancient Chinese medical texts. Based on its clinical manifestations and the characteristics of “dryness”, most physicians classify it under the category of “persistent dryness”. The method of “Chilong stirring the sea” is simple, easy to implement, safe and effective, and is very beneficial to patients with dry syndrome. If it can be combined with the “detoxification, ventilating, and generating fluid formula”, it will be more effective and is the best choice to overcome “persistent dryness”.