Mouth ulcers, commonly known as mouth sores. When this disease strikes, the area is light yellow, there is often a redness around the ulcer during the attack, the diameter of the ulcer is usually within 0.5 cm, often several at the same time and very painful, i.e., “red, yellow, concave and painful”: the area around the ulcer will be swollen and red, the ulcer itself is yellow, the shape of the ulcer is concave and the ulcer will be painful. There are many reasons for the formation of mouth ulcers, and the understanding of this disease differs between Chinese and Western medicine. Western medicine believes that this disease is mainly: 1, immune dysfunction: can be manifested as autoimmune response hyperactivity, may also be manifested as a defect in immune function, generally the latter is more common; there are clinical and immune research that certain bacteria, viruses and other microbial infections, may be one of the important causes of recurrent oral ulcers. 2, mental factors certainly have a close relationship with the mouth ulcer: statistics can be seen, due to the modern life tension, mental stress, has made the mouth ulcer patients become a kind of “civilization disease” due to life form, clinical observation also found that many oral patients is then excessive mental fatigue after the onset of the fact that In fact, mental tension, lack of sleep, work stress, excessive fatigue, poor spirit, etc., can lead to an imbalance in the human body environment, will also activate the virus in the body, resulting in ulcers occur more often. 3, neuroendocrine disorders may also be associated with it, often seen in clinical women during menstruation prone to mouth ulcers. 4, vitamin and micronutrient deficiency can also lead to mouth ulcers, research has found that zinc deficiency, iron deficiency, folic acid deficiency, vitamin B12, etc. can cause mouth ulcers. Chinese medicine believes that this disease is mainly: 1, damp heat (1) spleen and stomach damp heat: clinical manifestations of the abdomen and stomach stuffy, anorexia, loose stools, urine short red unclear, or face and skin yellow, itchy skin, red tongue with yellow coating and moist pulse. (2) Damp-heat of liver and gallbladder: clinical manifestations are painful distension in the ribs, bitterness in the mouth, nausea, vomiting, abdominal distension, short red stools, red tongue with yellow fur, smooth pulse. 2) Deficiency heat: clinical manifestations include fever in the heart of hands and feet after exertion, low fever in the afternoon or evening, flushing of cheekbones, and emotional agitation. 3, cold and heat mixed: refers to the patient in the same period, the upper part of the manifestation of heat, the lower part of the manifestation of cold symptoms. For example, if an external disease is mistakenly used to attack the lower part of the body, resulting in more than diarrhea, fluid damage, heat rising and sore throat, sore mouth and tongue, or even yellow sputum or blood sputum; cold in the lower part of the body, diarrhea, cold limbs, sunken pulse, etc. Regardless of how Chinese and Western medical theory recognizes mouth ulcers, basically can be summarized as internal heat, physical weakness, therefore, the treatment of mouth ulcers must not be “one party rule”, according to the individual situation dialectical treatment. At present, Western medicine does not have a good treatment for this disease, but as an adjunct to the treatment of rapid pain relief can be effective. For recurrent, intractable mouth ulcers using a combination of Chinese and Western medicine is the ultimate solution.