For physical cooling with alcohol baths, the concentration of alcohol chosen is 30%-50%, i.e., warm water is added to the alcohol, and the ratio of alcohol to water is about 1:1-1:2 or so. The alcohol bath is a small towel dipped in diluted alcohol and wiped on the parts of the patient’s neck, armpits and thigh roots where the large blood vessels travel. After wiping, as alcohol is a volatile liquid, it will take away heat with evaporation to bring down the body temperature. However, it is important to note that alcohol can cause some skin irritation, mucous membranes are not damaged by the above methods, and alcohol baths are prohibited when there is damage. Also, if the patient applies cephalosporin antibiotics, alcohol rubbing is also prohibited.