Adults with a temperature of 38 degrees Celsius can take fever-reducing medication under medical supervision if they are very unwell, and physical cooling can usually be used first. General body temperature to 38.5 degrees Celsius to take antipyretics, but because antipyretics will not reduce the course of the disease, so generally when there is no body particularly uncomfortable, can be given first physical cooling. The first thing to do when you have a fever is to stay in bed, make sure you get enough sleep and drink enough water, and you can use physical means to lower your temperature first. For example, the use of ice towels, cold wet compresses to lower the temperature, but ice should not be more than 25 minutes to avoid frostbite. Or you can wipe your body with warm water to cool it down. The most important thing is to treat the fever according to the cause of the illness, and you should go to the hospital as soon as possible when you feel unwell, so as not to delay your condition.