furuncle

/ˈfjʊrʌŋkəl/
noun
  1. A painful, swollen area on the skin caused by an infected hair follicle; a boil.
    • The doctor said the red, tender lump on his neck was a furuncle.
    • She developed a furuncle on her arm after a small cut became infected.
    • Applying a warm compress can help a furuncle drain and heal faster.
Synonyms