Anointing of the Sick

Traditionally referred to as Extreme Unction or Last Rites, the Sacrament of the Anointing of the Sick was previously most commonly administered to the dying, for the remission of sins and the provision of spiritual strength and health. In modern times, however, its use has been expanded to all who are gravely ill or are about to undergo a serious operation, and the Church stresses a secondary effect of the sacrament: to help a person recover his health. Like Confession and Holy Communion, to which it is closely linked, the Sacrament of the Anointing of the Sick can be repeated as often as is necessary.

The modern celebration of the Sacrament of the Anointing of the Sick recalls the early Christian use, going back to biblical times. When Christ sent His disciples out to preach, "they cast out many devils, and anointed with oil many that were sick, and healed them" (Mark 6:13). James 5:14-15 ties physical healing to the forgiveness of sins: 

Is any man sick among you? Let him bring in the priests of the church, and let them pray over him, anointing him with oil in the name of the Lord. And the prayer of faith shall save the sick man: and the Lord shall raise him up: and if he be in sins, they shall be forgiven him.