Pediatric stomatitis is an inflammation of the oral mucosa. It can be caused by overheated or hard diet or drug stimulation, and can also occur when the body is immunocompromised due to upper respiratory tract infections, gastrointestinal diseases, infectious diseases or other febrile diseases, especially in infants and children who are also living with poor hygiene conditions. After western medical treatment, there are still some patients with unsatisfactory clinical results. Chinese medicine can be used for patients who are not well treated by western medicine, and the clinical effect is better than that of western medicine when it is tried for those who have just developed the disease. The duration of the disease can be significantly shortened, while avoiding the adverse effects caused by the massive application of antibiotics. The formula: 20g of raw earth, 20g of gypsum, 8g of honeysuckle, 5g of forsythia, 5g of asclepias, 5g of bamboo leaves, 14g of raw hawthorn slices, 7g of yellow lily of the valley (finely beaten), 5g of licorice. Soak the above drugs with appropriate amount of water for 30 minutes, take 120ml of the first decoction and 60ml of the second decoction. take one dose for three days, first the first decoction and then the second decoction, 10ml each time, 6 times a day. If the drug is spit out in the mouth, it is considered as gargling, which is also effective. Stop taking all other drugs during the period of taking the medicine. According to Chinese medicine, stomatitis in children is caused by the accumulation of internal evil toxins in the heart and spleen. The tongue is the seedling of the heart and the mouth is the orifice of the spleen, so the accumulated heat of the heart and spleen travels up the meridian and burns the mouth and tongue. In the formula, raw earth nourishes yin and blood, as the ruler; gypsum to clear the fire of the lung and stomach, gold silver flower, forsythia to clear heat and detoxify the heart, Huang Lian to clear the fire of the heart, as the minister; bamboo leaf to clear heat, produce fluid, diuretic, ascending marijuana to lead the medicine upward, raw hawthorn to strengthen the spleen and stomach, as the adjuvant; licorice to reconcile all the drugs, as the make medicine.