If the body’s temperature center is in a state of imbalance, it can easily lead to a cold and fever, so it is important to pay attention to cold and warmth to avoid high fever. If an adult has a fever of more than 38.5℃, treatment measures should be taken in a timely manner, preferably with the application of drugs to reduce fever, and then with other physical cooling methods. I. Drugs to reduce fever Adults with fever above 38.5℃ are considered high fever and need to take fever-reducing drugs immediately, and can take acetaminophen tablets directly. If there is a persistent fever or repeated fever, generally after an interval of 4-6 hours, you can repeat the medication once, no more than 4 times a day, the specific dose needs to be used in accordance with the instructions. 2. Physical cooling 1. warm water bath: use a towel with warm water to wipe the neck, armpits, thigh roots and other parts; 2. drink more water: drink more water during fever, eat a liquid diet, such as watermelon juice, to ensure that the body has sufficient energy and water supply; 3. keep the room ventilated: pay attention to room ventilation during fever, pay attention to heat dissipation, dress generously, use air conditioning in summer, control the room temperature at 27 ℃ 4.Ensure sufficient sleep: During fever, you should ensure sufficient sleep and avoid staying up late and exertion to facilitate the recovery of the disease.