They usually begin in the arms, legs or abdomen, and often precede heat exhaustion. Treatment for heat cramps is to rest in the shade, get near a fan, spray the person with water and massage the cramp. Heat exhaustion is a medical emergency. When a person is suffering from heat exhaustion, they will perspire profusely and most likely will be pale. It is best treated by taking the patient to a cool place, applying cool compresses, elevating the feet and giving the patient fluids.
Heat stroke is the worst heat-related injury.
The brain has lost its ability to regulate body temperature. The patient will be hot, reddish and warm to the touch. Their temperature will be markedly high and there will be no perspiration. The emergency care of heatstroke is to cool the body as quickly as possible. One of the best methods for cooling the body during a heat emergency is to wrap the patient in cool, wet sheets.