January 17, 2003, Newsletter Issue #120: Winter Skin II

Tip of the Week

FROSTNIP VS. FROSTBITE

Not protecting your skin in extreme cold can lead to conditions like frostnip and frostbite. Frostnip results from prolonged exposure to sub-freezing temperatures and wind chill. The skin, usually on the face, ears, and fingertips, tries to reduce heat loss by constricting small blood vessels. When re-warmed (areas should be re-warmed gradually), the skin may swell and turn red, itchy and painful. When re-warming, do not rub or apply any ointment to the areas, as this may cause further damage or irritation.

Frostnip is less severe than frostbite as it does not result in permanent damage. In frostnip, the skin initially becomes white and numb and is followed by a loss of feeling and blistering. Frostbite, on the other hand, can result in permanent damage because it involves deeper layers of the skin. Ice crystals can actually form between cells, causing the affected areas to become white, hard and numb. When re-warmed, those areas become red, swollen and possibly blistery, and may lead to tissue death. Suspected frostbite should not be taken lightly. Seek medical attention immediately.

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