It is prayed using a rosary. On the Our Father beads, say:
I invoke the presence of the Father, of the Son, and of the Holy Spirit upon any source of evil that may be affecting N.
Yahweh, I desire to bless N. with faith, with love, with hope, with peace, with understanding, with protection, with Thy Holy Spirit, and with obedience to Thee.
Yahweh, I desire to bless N. and all the evil influences that may be affecting N. Come with Thy peace, with Thy obedience, with Thy love, and with Thy power to bless, protect, and heal, in the name of the Father, of the Son, and of the Holy Spirit. Amen.
On the Hail Mary beads, say:
I invoke the presence of the Father, of the Son, and of the Holy Spirit upon N.