Covering sweat is not recommended for colds and flu, especially if you have a fever, which may aggravate your condition.
The body’s hypothalamus acts like a thermostat, and when an infection occurs, the hypothalamus raises the body temperature because of the inflammation in the body. In fact, it is not the act of covering the sweat that causes the body to sweat to lower the patient’s temperature; rather, when the temperature exceeds the hypothalamus’ set point, the body automatically begins to sweat as a cooling mechanism.
Covering the sweat through clothes or blankets will lead to a further increase in body temperature, which is not conducive to fever reduction and may also lead to severe dehydration, shock, and even life-threatening conditions for the patient.
Most body-induced colds and fevers are caused by infections, and a proper fever usually does not cause serious harm to the body. So fever is not necessarily a bad thing, but a process by which the body’s immune system fights off pathogens.
When you have a cold, it is recommended that you seek timely medical attention and standardized treatment under the guidance of your doctor.