Anointing of the sick, known also by other names such as unction, is a form of religious anointing or "unction" for the benefit of a sick person. It is practiced by many Christian churches and denominations.
Detail of The Seven Sacraments (1445) by Rogier van der Weyden showing the sacrament of Extreme Unction or Anointing of the Sick
Service of the Sacrament of Holy Unction served on Great and Holy Wednesday.
R. W. Schambach anointing oil
Anointing is the ritual act of pouring aromatic oil over a person's head or entire body.
The Anointing of David, from the Paris Psalter, 10th century (Bibliothèque Nationale, Paris)
Anointing of Pharaoh in Ancient Egypt
Jain Abhisheka at Śravaṇa Beḷgoḷa
Samuel anoints David, Dura Europos, Syria, 3rd century.