Drinking more water when you have a fever can reduce your fever. Drinking more water will drain water out of your body through sweating and urination. In the process of drainage, it will take away part of the heat as well as germs, which can play a role in lowering the body temperature and reducing the symptoms. Drinking water should be done in small amounts and several times, not too much at once. Fever can also be relieved by physical cooling, taking warm water or alcohol to wipe the armpits, neck, groin and other large blood vessel travel areas to facilitate heat dissipation, high fever patients take antipyretic drugs to cool down, and bacterial infections need to take anti-inflammatory drugs. Be careful to control the dose of drugs, too large a dose may cause side effects; too small a dose may not achieve the therapeutic effect. Usually fever can last 3-5 days. The diet should be kept light and easy to digest, not too greasy, to quit smoking and alcohol, to maintain a scientific and regular life, to avoid overexertion, to keep the environment quiet, pay attention to ventilation, room temperature should not be too high, as well as pay attention to their own hygiene conditions.