Fever with high white blood cells should be considered as a symptom of tonsillitis, pneumonia and other diseases caused by bacterial infection. In this case, you can use antibacterial drugs, such as cefaclor granules, benzylpenicillin or amoxicillin to treat bacterial infections. Fever can first be treated with physical cooling methods such as warm water baths or alcohol baths. If the body temperature exceeds 38.5℃, this situation needs to actively take antipyretic drugs, such as pediatric clear heat Ning granules, pediatric ibuprofen suspension solution to reduce fever. Don’t wear too thick clothes during the period of illness, so as not to affect the dissipation of heat. Drink plenty of warm water, millet porridge, thin noodles, which will help replenish nutrients, but also can help replenish water, prevent dehydration. During the fever period, try to rest in bed and do not go outdoors, so as not to be irritated by repeated exposure to cold.