3pc St. Benedict Exorcism Medal. Our Silver Oxidized Saints Medals Come on a Convenient Jump Ring, Ready for a Stainless Steel Chain. -- Oxidized Silver -- 3/4" H. 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.