Slurred speech, disorientation, uncontrollable shivering, stumbling, drowsiness, and body temperature of 95 degrees Fahrenheit or less. Seek immediate medical attention. Use your own body heat if nothing else is available. Do not warm the extremities first. Do not administer hot liquids or alcohol.
Frostbite occurs when the ears, nose, toes, and fingers become frozen and lose blood flow.
The skin will look pale and bloodless. Slowly warm the affected parts if they've become frostbitten. Heat only the areas you are using. Close doors and curtains or cover windows and doors with blankets. Use alternate heat only in well ventilated areas.