Generally, the use of antipyretic injections is only recommended for adults with fever over 38.5°C. The common antipyretic injections on the market are mainly cotrimoxazole, anacin, and arginine aspirin. Among them, compound aminobarbital and arginine aspirin are more commonly used. Usually, the body temperature will come down in an hour after the injection on average. If the body temperature is below 38.5 ℃, it is not recommended to give fever-reducing injections, you can use physical cooling methods to reduce fever, as follows: 1, wet towel method: the towel soaked in cold water wrung into a semi-dry, put on the patient’s forehead or armpit, groin and other large blood vessels, to achieve the purpose of cooling; 2, ice bag cold compress method: the appropriate amount of ice into the ice bag, then add the appropriate amount of water, the outside wrapped in a layer of towel, placed on the The patient’s forehead for 15 minutes; 3, alcohol wipe: use 75% alcohol 100ml, add an equal amount of 27 ℃ – 30 ℃ warm water, wipe with a towel from the neck, from top to bottom, to the armpit, groin; 4, drink more water: a small number of times to drink warm water, not only to replenish the liquid, but also to speed up sweating, urination, to promote the body’s toxins and metabolic waste discharge.