If the fever is 39 ℃ can be physically cooled, but it is best to first take the oral antipyretic ibuprofen granules or acetaminophen suspension, and then physical cooling, so as not to trigger hyperthermia convulsions. Because the medicine can not immediately reduce fever, the drug takes some time to work, then you can give physical cooling methods are as follows: 1, you can take a warm bath, which is very simple and effective method, especially for children under 2 years old. 2, cold towel head wet compresses, you need to constantly replace the cool towel. 3, you can use the ice pillow, in a sealed bag with ice and a small amount of water pillow under the head, the top can If the older children can also use ice caps to physically cool down. 4, cooling paste, the effect is limited, for moderate fever or low fever physical cooling, about half an hour after the antipyretics began to work, physical cooling can be stopped.