Vomiting in children with fever is mostly caused by gastrointestinal dysfunction. Small and frequent meals should be taken, and oral probiotics with appropriate amount of oral rehydration salts can be taken to improve the vomiting symptoms. If the vomiting is severe, temporary fasting for a few hours is needed. If the child’s temperature exceeds 38.5 ℃, you can take oral ibuprofen suspension, or acetaminophen suspension and other antipyretic drugs, can play a rapid role in reducing fever. If the child vomits frequently, the spirit is more depressed, and even the phenomenon of convulsions, you need to go to the emergency department and pediatrics, usually given intravenous fluids for symptomatic treatment, when the condition is more serious, it is recommended to be hospitalized.