One word substitute is Panacea.Exorcism: the religious or spiritual practice of evicting demons or other spiritual entities from a person, or an area, that are believed to be possessed.Incantation: a series of words said as a magic spell or charm.Panacea: a solution or remedy for all difficulties or diseases.Antibiotic: a medicine (such as penicillin or its derivatives) that inhibits the growth of or destroys microorganisms.