Fever up to 38.5℃ can be covered, need to do a good job to keep warm, but can not cover heavy quilts to avoid affecting heat dissipation. Patients with moderate fever can be divided into rising fever, high fever and falling fever, and can consider whether or not to cover the quilt according to different situations. 1. rising fever: the main manifestations are chills, chills, fatigue, pale skin, muscle pain and other symptoms, so you can cover the quilt to keep warm at this time; 2. high fever: the main manifestations are burning skin, flushed face, accelerated breathing and deepening, sweating and gradually increasing. At this time, if the patient feels hot and dry, he can not cover the quilt, but should try to maintain a room temperature of 22-25 ℃, to avoid too cold or too hot affect the condition; 3, the period of fever: at this time, the patient will sweat a lot, damp skin, it is recommended to keep warm, but not recommended to cover the quilt, so as not to affect the normal heat dissipation, but also affect the patient’s comfort. For patients with fever up to 38.5℃, they can be cooled by physical means such as warm water baths and ice packs, or they can be cooled by medication under the guidance of a doctor. Since patients themselves cannot determine the cause of fever, self-medication is not recommended. In addition, during the process of fever reduction, body temperature can be measured four times a day to observe the fever reduction, and more water should be drunk to help replenish water and promote the elimination of toxins and metabolites.