Frostbite can often take victims by surprise, since there is no pain initially. First there is redness, a burning sensation and a decreased feeling. As frostbite progresses, the affected areas become insensitive to cold. The skin becomes white on the surface, but still soft inside. Later, the area will lose feeling and becomes hard on the inside as well.
Severe frostbite can result in loss of body parts usually the fingers or toes.
You should seek medical attention as soon as possible and don't exercise, force fluids, drink any cold liquids or melted snow unless absolutely necessary. In severe cases of hypothermia, it is important to keep the victim warm and still and quickly transport them to the nearest emergency department. Continually circulate the water and monitor its temperature with a thermometer. Water that is too cold or too hot can cause further damage. As bloodflow returns to the frozen part it will become warm, pink and painful.