Pneumonia patients usually have elevated body temperature due to infection by bacteria and other pathogenic factors. For patients with high fever, they should pay attention to the following matters: 1. Physical cooling measures such as bath with warm water, ice bag and ice cap can be used to gradually lower the temperature and prevent hypothermia. If chills occur, the room temperature should be adjusted and attention should be paid to keeping warm; 2. Patients sweating a lot should be wiped and changed clothes in time to avoid getting cold. If necessary, antipyretic drugs can be used under the guidance of the doctor; 3, after getting up in the morning, after meals, before bedtime should encourage patients to rinse their mouths to keep their mouths clean, to avoid affecting their appetites, and also to prevent secondary infections. Some patients may have herpes on the lips and mouth, and should apply local antiviral ointment; 4. Due to the physical exertion of elevated body temperature, patients should be allowed to take bed rest, reduce energy consumption and timely hydration.