Ulcerative stomatitis usually takes about 12-14 days to return to normal, and its duration is related to the patient’s resistance. Ulcerative stomatitis occurs mostly in people with low resistance, especially in infants and children, and is thought to be an inflammation of the mouth caused by bacterial infection, hence the name bacterial stomatitis. Its etiology may be related to genetic factors, work stress, lack of sleep, decreased resistance, and bacterial infections. The main manifestations are scattered ulcers of different sizes on the oral mucosa (tongue, cheeks, gums, palate, gums, etc.), sometimes connected into patches, and the surface mucosa peels off to present a red vesicular surface, and the affected children often cry because of pain or are afraid to eat, accompanied by varying degrees of fever, irritability, and loss of appetite in severe cases. At present, ulcerative stomatitis mainly adopts a combination of systemic and local treatment, such as systemic antibiotic treatment, and local scrubbing with Levanox solution, or topical application of borax, watermelon cream spray, etc. Under normal circumstances, after effective treatment, most patients can be cured within 2 weeks. In short, once the ulcerative lesions occur in the mouth, it is recommended to visit the stomatology department of the hospital and use the medicine under the guidance of the doctor. You should also pay attention to maintain oral hygiene, toys, tableware and timely disinfection of high temperature.