Fever can be lowered physically without medication, and medical attention is needed if it cannot be controlled. Fever can be caused by a variety of reasons, such as viral infections, bacterial infections, blood system disorders, immune system disorders, and tumors. Physical cooling can be done in the absence of medication. First of all, you can drink more water to replenish water, the high temperature will lead to excessive loss of water in the body, and replenishing more water will help to reduce the excessive temperature in the body. In addition, you can also use warm water to wipe the forehead, neck, thighs, chest, back, palms, feet and other parts of the body, so that the water on the surface of the skin to evaporate, take away a large amount of temperature, but also help to lower the temperature. You can also take ice packs to lower the temperature physically, when the physical cooling can not be controlled, you need to consult a doctor for examination.