Hand, foot and mouth disease is an infectious disease caused by intestinal viral infection and can be cured by oral medication. The choice of treatment depends on the severity of the infection and the immune function of the child. If an older child is not heavily infected with the virus and has good immune function, he or she may have a mild fever, with only a rash on the hands and feet and herpes on the cheeks. Symptomatic oral application of antiviral drugs, at the same time, according to the pain of herpes can be given to the Chinese medicine to clear the heat of the spray on the throat, with more water can be cured. If the immune system of the younger child is weak, the fever is more severe, and the herpes on the cheeks is very painful, which makes it impossible to take oral medication or interferes with eating, then intravenous fluids are needed for further treatment.