Frostbite is damage to body tissue caused by that tissue being frozen. Frostbite causes a loss of feeling of a white or pale appearance in extremities, such as fingers, toe, ear lobes, or the tip of the nose. Frostbite varies in severity from frost-nip to deep frostbite, depending on the length of exposure, temperature to which the skin is exposed and wind speed. For frost-nip, place firm, steady pressure from a warm hand against the area. Also, blow on the surface holding the frost-nipped area against the body. Do not rub the area, apply snow or plunge it into very hot or cold water. Victims of severe frostbite must receive prompt medical attention.