St. Benedict has a helpful “exorcism” prayer–not like the movies, but rather one which helps to cast aside the evil one during times of temptation, despair, or other spiritual battles. I have used it often and figured that it might be useful to the rest of you, in case you are unaware:
Get behind me, satan!
What you have offered is evil,
drink the poison yourself!
AMDG
Times-Dispatch of Vichy Earth 