pernio

/ˈpɜːrnioʊ/
noun
  1. A medical term for chilblain: a painful, itchy swelling on the skin, usually on the hands or feet, caused by exposure to cold and damp conditions.
    • Doctors often treat pernio by gradually warming the affected area.
    • After the long hike in wet snow, she developed a pernio on her little toe.
    • Wearing warm, dry socks can help prevent pernio in cold weather.
Synonyms