Fever, physical cooling is the choice of ice towels, because fever body temperature is in a rising state, with hot will aggravate the accelerated rise in body temperature, so the physical cooling or to choose ice towels, in order to play the role of cooling, but due to the fever, vascular regulation of peripheral vasoconstriction, many people’s limbs are cold, and at this time to apply the towel can continue to use the ice. But for the cold extremities is more obvious, it is recommended to use a warm towel to wipe or compress, because the blood flow in the extremities may appear after the reduction of the extremities of the cold, body temperature is not controlled by consciousness of an autonomic nervous system, so improve the microcirculation of the hands and feet, for the body’s regulation of the immune system is still helpful, so the fever compress towel is generally also choose ice, for the accompanied by cold extremities, extremities to cold suggestions Still use warm towels, hot towels, because the body is very weak patients, extremities turn cold will have induced shock or other situations.