From the Virginia Department of Emergency Management
Learn the signs of and basic treatments for hypothermia and frostbite:
Hypothermia is an unusually low body temperature. A temperature below 95 degrees is an emergency.
Actions: Go to a warm room. Warm the center of the body first—chest, neck, head, and groin. Keep dry and wrapped up in warm blankets, including the head and neck.
Frostbite causes loss of feeling and color around the face, fingers, and toes.
Actions: Go to a warm room. Soak in warm water. Use body heat to warm. Do not massage or use a heating pad.