inunction

/ɪˈnʌŋkʃən/
noun
  1. The act of rubbing an oil or ointment into the skin; an application of ointment.
    • The massage therapist performed a gentle inunction using lavender oil.
    • The doctor recommended daily inunction of the medicated cream for the rash.
    • In ancient Rome, inunction with scented oils was part of the bathing ritual.