Catholic & Religious Silver Tone Saint Bendedict Exorcism Medal, St. Benedict Rosary. Men or Womens Rosary, Silver Tone. 9mm Medal Bead, 24"l. Lay Catholics Are Not Permitted to Perform Exorcisms but They Can Use the Saint Benedict Medal, Holy Water, the Crucifix, and Other Sacramentals to Ward Off Evil. Catholic Saint Benedict Patron Saint of Kidney Disease, Poison Sufferers, Students, Poisoning, School Children, Homeless, Monks.