Pediatric oral herpes, also known as herpetic stomatitis, with a fever duration of about 3-4 days, is an acute plasmacytic inflammatory change of the oral mucosa that occurs in children under three years of age. Pediatric oral herpes is a disease caused by a viral infection that is contracted through contact with the skin mucosa, digestive tract and respiratory tract. It is a self-limiting disease with a duration of about 1-2 weeks. After 1-2 days of fever, single or multiple herpes may appear on the oral mucosa, which may be itchy and painful. When the herpes ruptures to form an ulcerated surface, a purulent discharge may appear on the surface secondary to bacterial infection, and the child may feel painful in the mouth and be reluctant to eat. The main clinical treatment is symptomatic.