The Rosary is a wonderful prayer for any need.
However, any sincere prayer, whether itās a formal prayer like the Rosary or the Divine Mercy or the āEternal rest grant unto my father, O Lordā¦ā , or just something free form like āDear God, please help my father get to heaven if heās in Purgatoryā, will work fine.
As a child, I was taught that whenever I pray, when I make the closing sign of the cross, I add at the end, āJesus have mercy on the souls in purgatory and the souls on earthā, so we are praying for the souls in Purgatory throughout the day since normally we would pray several times a day before driving the car, grace before meals, and at bedtime.
You can say special Rosaries for the Poor Souls in Purgatory that have a purgatory prayer at the start of each decade. If you Google, you can find these online. I note some of them add an extra decade to the Rosary (six decades instead of five).
The Divine Mercy is considered to be a good prayer for souls both living and dead. The āEternal Rest grant unto them O Lordā¦ā prayer is traditional Catholic. I usually say it when I pass a cemetery or hear of a death.
Offering a Mass for a deceased person is considered to be the best prayer you can make. You can go and request a Mass intention at your church (usually there is a stipend involved) or you can just go to Mass yourself and receive Communion with the intention of offering your Holy Communion and Mass attendance, yourself personally for one or more deceased souls. Like I just go to Mass and mentally pray, āLord, I am offering my Holy Communion today for the souls of my husband and Uncle Jā.
You can also get a plenary indulgence for your dadās soul.
from purgatory can return to the living to ask for their prayer. What about hell 
? Can the souls in hell ask for prayers from the living also? Just curious. 
and I enjoyed reading her diary. I also enjoyed St Catherine letters as well as St Louis De Montfortās book. I watched paranormal videos just for fun.
