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 Chilblains are a skin condition that occurs when small blood vessels in the skin react abnormally to sudden temperature changes, especially after exposure to cold and damp environments. They typically appear as red, swollen, itchy patches on the fingers, toes, nose, or ears. In some cases, chilblains may cause a burning sensation, blistering, or skin ulceration if not properly managed.

The condition develops when blood vessels constrict in cold temperatures and then expand too quickly upon rewarming, leading to leakage of blood into surrounding tissues. People with poor circulation, low body weight, or underlying conditions such as lupus are more susceptible.

Chilblains are not usually serious but can be uncomfortable and recurrent during the winter months. Preventive measures include keeping extremities warm, avoiding sudden temperature changes, and wearing appropriate clothing such as gloves and thick socks. Treatment generally involves soothing the affected skin with topical creams, avoiding scratching to prevent infection, and using gentle warming methods rather than direct heat.

For persistent or severe chilblains, medical advice is recommended as they may indicate an underlying health condition. Early recognition and preventive care help reduce discomfort and minimize recurrence during cold weather seasons.