There are two methods of physical cooling for adults with fever of 39℃: local and whole-body cold therapy. Body temperature over 39 ℃, the choice of local cold therapy, can use cold towels, ice bags, antipyretic paste, heat dissipation through conduction; body temperature over 39.5 ℃, the choice of whole body cold therapy, can use warm water swab bath, ethanol swab bath way, to achieve the purpose of cooling. I. Local cold therapy 1. Preparation: cold towel / ice bag / antipyretic patch; 2. Placement: placed on the forehead, top of the head and body surface where the large blood vessels flow through (both sides of the neck, armpits, groin, etc.); 3. Placement time: no more than 30 minutes; 4. Second, the whole body cold therapy 1, the preparation of goods: 32-34 ℃ warm water or 25%-35% ethanol solution; 2, wipe method: remove clothing and pants, large towel pad under the wipe parts, small towel immersed in warm water or ethanol, wrung until half dry, wrapped around the hand into a glove, the centrifugal direction of the bath, swabbing bath is completed, dry the skin with a large towel; 3, wipe parts: double upper limbs, waist back, double lower limbs, wipe to the armpit, elbow fossa 4.Wiping time: 3 minutes per side (extremities, waist and back), within 20 minutes for the whole process; 5.Observation: patients with chills, pale face, abnormal pulse and breathing should be stopped immediately. For local cold therapy and whole body cold therapy, the anterior chest area, abdomen, posterior neck and soles of the feet are contraindicated areas for cold compresses or swabbing.