Mouth ulcers, Chinese medicine belongs to the category of mouth sores, mouth erosion, Chinese medicine is generally due to the stomach fire inflammation, yin deficiency fire (Yin essence deficiency in the body, there is a hyperactive fire), heart fire, etc., for the inflammation of the stomach fire, oral Jade Woman Decoction plus or minus treatment; for the yin deficiency fire, oral Zhibai Di Huang Pill plus or minus treatment; heart fire, oral guide Chi San plus or minus treatment. 1. Stomach fire inflammation: symptoms such as mouth sores, redness, swelling and pain, stomach burning, bad breath and constipation, etc., need to clear the stomach and diarrhea (remove stomach fire), can be taken orally Jade Maiden Decoction plus or minus treatment. 2. Excessive fire in the heart: symptoms such as redness and swelling of mouth sores, sleeplessness at night, short and reddish urine (small amount of urine, dark yellow color), and anxiety, etc., which need to clear the fire in the heart, and can be treated with oral treatment of Guanchisan plus or minus. 3. Yin deficiency and fire exuberance: symptoms such as mouth sores, white but not red, not much pain, accompanied by lumbar and knee soreness and weakness, tinnitus and forgetfulness, etc., need to nourish yin and reduce fire (nourish yin essence and reduce fire), can be treated with Zhi Bai Di Huang Wan. The adverse reactions and contraindications of the above drugs are not clear, and allergy sufferers should be cautious. Chinese medicine treatment of mouth ulcers, it is recommended that patients in regular hospitals, under the guidance of the doctor’s diagnosis and treatment of medication, do not take medication to delay the condition.