Children with a fever of 39 ℃, there is no fastest physical fever reduction methods, need to take antipyretic drugs, along with physical cooling. Children with a fever of 39 ℃ is a high fever, the simple use of physical cooling methods are not able to quickly reduce the fever, the need to give the child in time to take antipyretic drugs, such as ibuprofen, acetaminophen. At the same time, we should pay attention to let the child drink more water, can promote sweating and excretion, to help reduce the temperature. Children with high fever can also be combined with physical cooling, such as warm water baths and fever patches. Warm water bath is mainly to use warm water to wipe the child’s body, especially for the distribution of large blood vessels rich in parts, such as the forehead, armpits, palms, feet, thighs, etc., to wipe a few times. You can also put on antipyretic patches to help lower the temperature. Children with a fever of 39 ℃ can not simply reduce the fever, should be timely consultation, to clarify the cause of fever, for the cause of treatment.