Halitosis (also called “bad breath”) refers to the unpleasant breath emitted from the mouth that is annoying to others and embarrassing to oneself. It is a symptom caused by certain oral diseases (such as mouth sores, mouth erosion, dental caries), nasopharyngeal and throat diseases (such as nasal abscess, milk moth) and other diseases (such as pulmonary canker, stomach fire, food stagnation). Halitosis often causes great mental and psychological burden to patients. Halitosis is a common clinical disease, which brings great distress to patients’ intercourse and negotiation. Ancestral medicine believes that the body is strong, clear and fresh, mouth and tongue is the external manifestation of the normal internal organs of the body functional activities. On the contrary, it may be a pathological phenomenon. Chinese medicine believes that: halitosis arises from a variety of acute and chronic diseases of the human body, such as the Qing dynasty, “the source of miscellaneous diseases quiet candle” said: “deficiency fire and heat, contained in the chest and stomach is halitosis, or labor heart taste thick people also halitosis, or lung for fire burn halitosis.” From the Chinese medicine by the dialectical description, that is, the chest and abdomen is not smooth, turbid Qi upward rebellion, gastric Yin depletion, deficiency heat, gastric Yin is damaged, fluid deficiency, deficiency fire up steam; lung Yin is damaged, Qi rebellion upward; essence, Qi and blood is damaged, deficiency of Yin and fluid deficiency of the stomach and intestines, liver and gallbladder deficiency fire up steam, liver fire offends the stomach, fire inflammation, spleen deficiency, Qi stagnation, heat and cold, lifting and lowering the loss of the division and cause bad breath. The teeth are the remainder of the bone, belongs to the kidney, foot Yangming meridian in the upper gum, hand Yangming meridian in the lower gum, so visceral diseases can be through the meridian and halitosis. The stomach is the sea of water and grain, specializing in the receipt of cooked food, if people eat and drink in a disciplined manner, to maintain the regular alternation between the stomach and intestines, the food residue also descends with the stomach and the small intestine, so the spleen can rise clear, the stomach can descend turbid. The stomach’s descending turbidity and the spleen’s main function of ascending the clear has the opposite effect of cooperation. Therefore, the residue of decay in the stomach is also such as water does not rot the reason and can be pushed to new, less gastric disease, if the spleen and stomach disorder, the digestive system will occur, that is, the pathology of the spleen and stomach, and not descend the turbid decay gas on the mouth, the symptoms of halitosis. Chinese medicine believes that there are several causes of long-lasting bad breath: 1, gastric fire halitosis: mostly caused by fire and heat of the evil offender stomach. In addition to the evidence of halitosis, every red face and body heat, thirst and cold, or mouth and tongue sores, or gum swelling and pain, bleeding pus, etc.. 2, food stagnation halitosis: mostly caused by overfull injury to the stomach, shrinking food stagnation in the stomach. The evidence of the mouth out of the sour and rotten odor, distension and pain in the abdomen, not thinking about eating, belching and bad breath. 3, hot phlegm halitosis: mostly caused by hot phlegm offending the lung or hot phlegm pus and rot caused by long depression. The evidence in addition to bad breath, every cough and spit phlegm or pus and blood, chest pain and short breath. 4, deficiency heat halitosis: mostly caused by Yin deficiency and internal heat. Bad breath and see dry nose, dry cough, dry stools, for the lung Yin weakness of the symptoms. When clearing the lungs; bad breath and see the heart restlessness, insomnia and dreaminess, muscle throbbing, claw nails, for the liver’s yin and blood deficiency. Bad breath with soreness and weakness of the waist and legs, dreaming and spermatorrhea, dry mouth and throat, especially at night, is a deficiency of kidney yin and the evidence of delusional movement of phase fire. The main manifestations are bad breath, thirst for cold, sores on the mouth and tongue, painful gums, dry stools, short yellow urine, red tongue with yellowish coating and slippery pulse. Treatment should be based on clearing the stomach and draining heat. The internal and external treatment methods are divided. For internal treatment, we can add or subtract Diarrhea Yellow San and Clear Stomach San. External treatment method is more, can massage the stomach meridian point to remove stomach fire: once a day in the morning and evening massage. Because the gastric meridian is at its peak at 7-9 am, it is more effective to massage the Neiting point while you are up. At 7 to 9 pm, the process of soaking feet with hot water, feet rubbing against each other, can make the blood circulation fluid smooth, so the massage effect is also very good at this time. Or mash sunflower seeds with honey to make pills in the mouth, boil rice water and use it to gargle, light salt water gargle can remove bad breath.