Can you cover with a blanket when having a high fever of 39°C in summer?

High fever generally refers to hyperthermia. Under normal circumstances, whether a person with a high fever of 39°C in summer should be covered with a blanket depends on the specific situation. If the high fever is caused by wind-heat stimulation, covering with a blanket is generally not recommended; if it results from wind-cold stimulation, covering with a blanket is usually acceptable. Detailed analysis is as follows:

1. Not recommended

If the high fever is due to wind-heat stimulation, and the body temperature remains at 39°C without symptoms such as chills or shivering, covering with a blanket is generally unnecessary. During high fever, the body's heat dissipation significantly decreases while heat production increases. Covering with a blanket when there is no sensation of coldness may impair the body’s ability to dissipate heat. The thicker the blanket, the worse the heat dissipation, potentially causing the body temperature to continue rising and reducing the effectiveness of fever reduction. Patients may, under a doctor's guidance, take medications such as Fengre Ganmao Granules, Ganmao Qing Capsules, or Compound Honeysuckle Granules for treatment.

2. Recommended

If the high fever is caused by wind-cold stimulation, and the patient has a temperature of 39°C accompanied by persistent feelings of coldness and obvious shivering, it is appropriate to cover with a blanket to maintain warmth and alleviate discomfort. When using a blanket, attention should be paid to its thickness: use a light blanket if the room temperature is relatively high, and a thicker one if the room is cold. It is also advisable to keep hands and feet exposed. Patients should actively identify the underlying cause of the high fever and receive targeted treatment. When necessary, fever-reducing medications such as ibuprofen suspension, acetaminophen suspension drops, or compound zinc ibuprofen granules may be taken as directed by a physician.

Patients experiencing high fever are advised to seek medical attention promptly, determine the cause, and follow medical instructions for proper treatment.