Fever is not allowed to go to the air-conditioned room, because the room temperature in the air-conditioned room can interfere with the body’s hypothalamic thermoregulatory center, so that the body’s heat is not distributed and the purpose of cooling is not achieved. Patients with fever are advised to stay in a room temperature environment while keeping the air circulating in the room. It is recommended to take more rest, drink more water, and avoid overexertion and exposure to cold. Diet should be light, liquid, soft food, avoid eating raw, cold, hard, spicy and greasy food, avoid smoking and alcohol, increase nutrition, enhance physical fitness, reduce access to public places, give etiological treatment, with the effective drug treatment, the body temperature will drop to normal.