We do not consider Purgatory as being a place and state of horrid tortures, but as a place and state of purification, where one really suffers from being still separated from God and the blessed, and as a place and state of expectation in Love.
It is important to pray everyday for the Holy Souls in Purgatory. Our sacrifices, our little renouncements, our prayers, our communions, and especially the offering of Holy Masses relieve or save the Holy Souls in Purgatory.
It is recommended to offer a Gregorian Trentine for the souls of our dear departed, so to be granted their prompt deliverance.
"Let us not omit supplications for the souls of the dead; the Church prays and commands prayer for all those who have died in the Christian and Catholic family, even without naming them all, and in a general memento, so that the Mother common to all makes up in this way for the fathers and mothers, sons, parents and friends who are not there to fulfill this duty."
(Saint Augustine, De cura pro mort. IV)