Novena to St. Peregrine
Glorious wonder-worker, St. Peregrine, you answered the divine call with a ready spirit, and forsook all the comforts of a life of ease and all the empty honors of the world to dedicate yourself to God in the Order of His holy Mother.   You labored manfully for the salvation of souls. In union with Jesus crucified, you endured painful sufferings with such patience as to deserve to be healed miraculously of an incurable cancer in your leg by a touch of His divine hand. Obtain for me the grace to answer every call of God and to fulfill His will in all the events of life. Enkindle in my heart a consuming zeal for the salvation of all men. Deliver me from the infirmities that afflict my body (especially.....)

Obtain for me also a perfect resignation to the sufferings it may please God to send me, so that, imitating our crucified Savior and His sorrowful Mother, I may merit eternal glory in heaven.
St. Peregrine, pray for me and for all who invoke your aid.

Chaplet of St. Peregrine
Chaplet is composed of three sets of small prayer beads,  2 large beads and a medal or some sort of centerpiece. On the large beads, say the following prayer:

O Saint Peregrine, you who have been called "The Wonder-Worker" because of the numerous miracles which you have obtained from God for those who have had recourse to you, who for so many years bore in your own flesh this cancerous disease that destroys the very fiber of our being, and who had recourse to the source of all grace when the power of man could do no more: you who were favored with the vision of Jesus coming down from His Cross to heal your affliction, ask of God and Our Lady the cure of these sick persons whom we entrust to you (your intentions, including yourself if need be). Aided in this way by your powerful intercession, we shall sing praise to God for His great goodness and mercy. Amen.

On the three small beads, pray an Our Father, a Hail Mary and a Glory Be to the Father.
So, you will say a total of 3 prayers to Saint Peregrine,
3 Our Father, 3 Hail Mary's, and 3 Glory Be prayers.