Fever is a regulatory process in which the thermoregulatory center located in the hypothalamus of the body is stimulated by the action of a pyrogen, and an increase in body temperature occurs. The clinical methods of fever reduction mainly include physical cooling and drug cooling, which need to be selected according to the patient’s fever situation. A physical cooling methods 1, drink more water: a small number of times drinking warm boiled water, not only can replenish the liquid, but also accelerate sweating, urination, and promote the body’s toxins and metabolic waste discharge; 2, alcohol wipe method: 75% of alcohol 100ml, add 27-30 ℃ warm water equal amount, wipe with a towel from the neck, in the centrifugal direction; 3, ice bag cold compress method: the appropriate amount of ice into the ice bag, and then Add the right amount of water, wrap a towel around the outside and place it on the patient’s forehead for 15 minutes; 4.Wet towel method: wring the towel soaked in cold water into a semi-dry, put it on the patient’s forehead or armpit, groin and other large blood vessel parts to achieve cooling purposes; 5.Warm water bath method: that is, wipe the whole body with a warm water towel, the temperature of the water is 32-34 ℃, each wipe time 10-20 minutes, focusing on wiping Underarm, elbow, groin and other places. Drug cooling is suitable for physical cooling is ineffective or the patient’s body temperature is above 38.5℃, it is recommended to use drugs under the guidance of a doctor. Commonly used antipyretic drugs are as follows: 1, acetaminophen: is a relatively safe antipyretic, but excessive doses can cause hepatotoxicity; 2, ibuprofen: non-steroidal anti-inflammatory antipyretic analgesic, with few side effects and good antipyretic effect; 3, diclofenac sodium: mostly suppositories, with few side effects and good antipyretic effect; 4, proprietary Chinese medicines: including Chaihu oral liquid, antelope oral liquid, etc., can shorten the course of fever and prolong the The time of body temperature control.