Children with a fever of 39.5 ℃ can use warm towels to wipe the skin and other methods to cool down the temperature. However, the effect of physical cooling alone may not be ideal, and a combination of medication is needed. Children with a fever of 39.5 ℃ can give the child drink more water, at the same time with a warm towel to wipe the skin, increase the area of the skin to dissipate heat, or in the forehead on the cooling patch, can also achieve the purpose of fever. However, because 39.5 ℃ is a high fever, the effect of physical cooling alone may not be ideal, can be combined with medication to reduce fever, under the guidance of the doctor to give children ibuprofen, acetaminophen and other antipyretic drugs. For children with a temperature of 39.5 ℃, parents should take them to the hospital in a timely manner, cooperate with the doctor to carry out standardized treatment, and at the same time to clarify the cause of the disease, to avoid delays in the condition.