Mouth ulcers recurring may be because of heat, can use Huang Lian, Huang Bai, Huang Baicalin, Baicalin, Gypsum, Zhi Mu, Niuhuang, gardenia and other heat-clearing medicines to regulate, specific should follow the doctor’s advice to take. Mouth ulcers are mostly caused by the accumulation of heat in the spleen and stomach or the inflammation of heart fire, etc., and Chinese medicines such as Huang Huanglian, Huangbai, Scutellaria baicalensis, Gypsum, Zhimu, Niuhuang, Gardenia, etc. have the effect of clearing heat and drying dampness (clearing away heat and drying out dampness), diarrhea and detoxification (getting rid of the body’s fire and toxicity and evil), detoxification and healing of sores, and cooling of the blood, which can be used to treat the symptoms of mouth ulcers and dryness of mouth and halitosis caused by accumulation of heat in spleen and stomach and the inflammation of heart fire. If mouth ulcers recur, it is recommended that patients seek timely medical treatment under the guidance of a physician. Do not smoke or drink alcohol during the treatment period, so as not to affect the therapeutic effect of the drug.