Pater, is there a blessing a Priest can give those who suffer from addiction/compulsion?
I can't say that I recall such a specific blessing in the Rituale or the Book of Blessings; but God certainly gives us His Graces and Blessings when we celebrate the Sacraments of Penance and Eucharist regularly and frequently. Certainly a Priest can pray over somebody who is suffering addictions or compulsions, asking God to send His aid and strengthen the person so afflicted in His Divine Love and care. We do well to remember always that God loves each one of us more than we can imagine and will always give us everything we need to grow in Charity and Divine Life.
+ May God bless you!
Fr. Timothy Johnson