Good Saint Dymphna, great wonderworker in every affliction of mind and body, I humbly implore your powerful intercession with Jesus through Mary, the Health of the Sick, in my present need. (Mention it.)
Saint Dymphna, martyr of purity, patroness of those who suffer from nervous and mental afflictions, beloved child of Jesus and Mary, pray to Them for me and obtain my request.
(One Our Father, One Hail Mary, One Glory Be)
St. Dymphna, Virgin and Martyr, pray for us. Amen
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(Taken from here: https://www.ourcatholicprayers.com/prayer-to-st-dymphna.html )
Under Mary's Mantle 