Today, Shrove Tuesday, is the feast of the Holy Face of Jesus. This feast is not on the liturgical calendar anymore, but it may be observed privately through prayers and devotions. The devotion was popularized by a nun, Sr Pierina. She died in 1945 and was beatified in 2010 by Pope Benedict.
Some prayers to Jesus honoring his Holy Face are here. This devotion was a favorite of St. Therese, whose full profession name was "Therese of the Infant Jesus and of the Holy Face."