Stomatitis in babies takes about 1-2 weeks to clear up. Stomatitis is an inflammation of the oral mucosa, which is more common in pediatrics, especially in infants and young children, and can be purely morbid or secondary to systemic diseases such as diarrhea, malnutrition, acute infections, and prolonged illnesses and infirmities. First of all, we should pay attention to scientific feeding, improve the ability to resist disease, strengthen the body, avoid malnutrition and vitamin deficiency. Then it is important to pay attention to oral hygiene, especially in the acute infection period, should pay attention to cleaning the oral cavity, but also pay attention to the diet and utensils, nipple cleaning and disinfection, to reduce the occurrence of diarrhea. During the epidemic of herpes stomatitis, preventive administration of Banlangen, once a day for 3 days. Apply antibiotics rationally to avoid abuse and trigger pediatric thrush and secondary infection.