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    Chilblains (Perniosis) - Topic Overview

    Chilblains (perniosis, also known as pernio) is a reaction to cold, nonfreezing temperatures. It is seen most often in young people who have Raynaud's phenomenon and people who are exposed to damp, cold weather.

    Symptoms develop 2 to 14 hours after exposure to cold and usually affect the hands, ears, lower legs, or feet. Symptoms include:

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    • Local redness and swelling.
    • Skin bumps.
    • Changes in sensation, such as itching or burning.
    • Tender blue bumps that develop after rewarming.
    • Blisters and ulcers (in severe cases).

    Treatment includes rewarming the affected areas, caring for any blisters that form, and avoiding reexposure to cold.

    WebMD Medical Reference from Healthwise

    Last Updated: November 14, 2014
    This information is not intended to replace the advice of a doctor. Healthwise disclaims any liability for the decisions you make based on this information.
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