chilblains

Chilblains, also known as pernio and chill burns are a medical condition that occurs when a predisposed individual is exposed to cold and humidity. Damage to capillary beds in the skin causes blood to perfuse into the nearby tissue too quickly, resulting in redness, itching, inflammation, and blisters. Chilblains can be reduced by keeping the feet and hands warm in cold weather, and avoiding extreme temperature changes.

Chilblains can be idiopathic (spontaneous and unrelated to another disease), ...