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:
- 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 re-exposure to cold.
Credits
Current as of:
July 1, 2021
Author: Healthwise Staff
Medical Review:
William H. Blahd Jr. MD, FACEP - Emergency Medicine
Adam Husney MD - Family Medicine
Kathleen Romito MD - Family Medicine
H. Michael O'Connor MD - Emergency Medicine