For colds, fever for physical cooling methods are as follows: 1, alcohol bath: if in the hospital, you can use 75% alcohol 100 ml to add an equal amount of warm water, so that the temperature is maintained at about 27-37 ℃, to avoid too cold, otherwise it will cause vasoconstriction of the muscle, resulting in the patient back to the temperature before the bath. At this time, you can use a towel dipped in the prepared solution to wipe, mainly wipe the skin folds of the parts, such as the neck of some of the large blood vessels in the area, as well as the armpits, the groin and other parts of the blood vessels are more rich; 2, warm water bath: use a towel dipped in 27-37 ℃ warm water in the skin folds of the place, such as the neck, armpits, elbows, and groin after the bath, the cooling effect will be more satisfactory; 3, Increase the amount of water: drink more boiled water to increase excretion, but also take away the body heat of a physical cooling method.