There are many kinds of viral herpes in children, and the more common one is caused by herpes simplex virus infection, which can be given antiviral treatment with acyclovir. Usually, the pain will gradually reduce after two or three days or three or four days of fever, and then recover in two or three to five or six days, so the natural course of herpes usually takes one to two weeks. If the axillary temperature of fever exceeds 38.5 degrees, antipyretic drugs can be given. If the axillary temperature does not exceed 38.5 degrees, the baby's mental state is OK, and you can not use antipyretic drugs first. You can let your baby drink more water, pay attention to the mental state of the baby, and monitor the baby's temperature. Children with fever caused by viral herpes are recommended to go to the hospital for inspection and treatment in time to avoid serious impact on the child due to aggravation of the disease.