pustular

/ˈpʌstʃələr/
adjective
  1. Relating to or characterized by pustules (small, inflamed, pus-filled bumps on the skin).
    • The patient had a pustular rash on his arms that required medical treatment.
    • The doctor diagnosed a pustular infection and prescribed antibiotics.
    • Pustular acne is a more severe form of the skin condition.