A child with a temperature of 39 degrees is considered to have a high fever. If the child needs emergency treatment at home, immediately take oral antipyretics such as ibuprofen pellets and acetaminophen suspension, calculating the dosage according to the child’s weight. At the same time, parents can give their children physical cooling, first of all, they should reduce the amount of clothing worn by the child, wipe the child’s body with warm water, wipe the child’s neck, underarms, back, thigh root and other parts to achieve the effect of heat dissipation. Secondly, parents can also boil ginger water to the child to dispel the cold, dehumidification, and let the child covered with good sweat, the child is younger it is best to send the child to the hospital immediately after the fever subsides, to determine the cause before treatment, and usually parents should have more emergency antipyretic drugs at home to prevent emergencies.