If you or someone is having a heat stroke the first thing to do is call 911 and get medical help on the way as soon as possible.
When having heat stroke the seconds matter in saving you or someone else's life with heat stroke.
Heat stroke if not treated fast enough can cause damage to the brain and other internal organs.
Symptoms of heat stroke include.
Throbbing headache
Dizziness and light-headedness
Lack of sweating despite the heat
Red, hot, and dry skin
Muscle weakness or cramps
Nausea and vomiting
Rapid heartbeat, which may be either strong or weak
Rapid, shallow breathing
Behavioral changes such as confusion, disorientation, or staggering
Seizures
Unconsciousness
While waiting for the paramedics to arrive, initiate first aid. Move the person to an air-conditioned environment -- or at least a cool, shady area -- and remove any unnecessary clothing.
If possible, take the person's core body temperature and initiate first aid to cool it to 101 to 102 degrees Fahrenheit. (If no thermometers are available, don't hesitate to initiate first aid.)
Try these cooling strategies:
Fan air over the patient while wetting his or her skin with water from a sponge or garden hose.
Apply ice packs to the patient's armpits, groin, neck, and back. Because these areas are rich with blood vessels close to the skin, cooling them may reduce body temperature.
Immerse the patient in a shower or tub of cool water.
If the person is young and healthy and suffered heat stroke while exercising vigorously -- what’s known as exertional heat stroke -- you can use an ice bath to help cool the body.