It is possible to take a hot bath when you have a fever of 38.5 degrees, but the temperature of the hot water should not be too high, preferably 2-3 degrees lower than the body temperature, the bath can directly take away the excess heat from the body, which is good for lowering the body temperature and for reducing fever. The water on the surface of the body can take away a lot of heat when evaporating, which is very good for reducing fever, so it is possible to take a hot bath when you have a fever of 38.5 degrees, as long as the temperature is not too high. But there are precautions to take before taking a bath, the body’s water and energy consumption is relatively large, you need to eat in moderation before taking a bath, not on an empty stomach, but also need to drink more water. The temperature in the bathroom should be adjusted appropriately, preferably at about 25 degrees, and the doors and windows must be closed, otherwise it is easy to catch a cold in the bath, which will aggravate the symptoms of fever, which is very unfavorable for fever recovery. The temperature has reached 38.5 degrees, it is best to take ibuprofen to reduce fever.