Heat stroke Call 911 or an ambulance immediately. Bring down the victim's body temperature as quickly as possible. Put the person in a tub of cold water or sponge the body with cold water or alcohol. If possible, rub the patient's arms and legs with ice cubes. People with heat stroke usually need to be hospitalized.
Heat exhaustion Have the person lie down in a cool place and sponge the body with cold water.
If the person is not vomiting , offer a cool salty liquid to drink. The person may feel better quickly, but should take it easy. If the person is elderly or cannot keep the salty liquid down, he or she should be taken to a hospital. Heat cramps The person should drink up to four glasses of a salty liquid. Firm pressure on the cramped muscles and warm towels may help.