The main cause of herpes in the throat of children with fever is viral infection, such as herpes pharyngitis and hand, foot and mouth disease. In this case, parents need to take their children to the pediatrician of the hospital, according to the clinical symptoms of the child, and combined with the blood routine, throat swabs and other related test results to confirm the diagnosis. 1, herpes pharyngitis: mainly due to the child’s infection coxsackie virus, respiratory and digestive tract mucosa irritation, the child appears fever, throat herpes and other symptoms. In addition, due to the obvious pain in the throat, some children may appear drooling, afraid to eat normally, etc. 2, hand, foot and mouth disease: due to the child’s infection with intestinal viruses, in addition to fever, herpes in the throat, the child’s hands, feet and buttocks generally also exist herpes. Mild cases can have these symptoms, while severe cases can be complicated by aseptic encephalitis, meningitis, and myocarditis. There are no specific antiviral drugs and no specific treatment for either herpes pharyngitis or HFMD, so treatment is mainly symptomatic in the clinical setting. If fever is present and the temperature exceeds 38.5°C, parents can treat the child with oral antipyretic drugs under the guidance of a medical professional; if it does not exceed 38.5°C, physical cooling can be chosen as far as possible, such as warm water baths and the use of antipyretic patches. During the treatment period, parents should pay attention to isolation to avoid cross-infection. Diet should be as light and nutritious as possible, such as egg custard, shrimp porridge, clear soup noodles, etc.