First Aid. (1) Heat cramps are painful spasms usually in muscles of legs and abdomen. Use firm pressure on cramping muscles, or gentle massage to relieve spasm. Give sips of water unless nausea occurs. (2) Heat exhaustion symptoms include heavy sweating; weakness; cold, pale clammy skin; and/or thready pulse. Fainting or vomiting may occur. Get the victim out of the sun. lay them down and loosen clothing. Apply cool wet cloths. Give sips of water unless nausea occurs. If vomiting continues, seek immediate medical attention. (3) Heatstroke (sunstroke) is when the body temperature reaches 106 degrees. Symptoms are hot dry skin and rapid and strong pulse. Person may become unconscious. Heatstroke is a severe medical emergency; summon medical help immediately or take to a hospital. While awaiting medical help, move the victim to a cooler environment. Reduce the body temperature with a cold bath or sponging. Use fans or air conditioners. Do not give fluids.