I figure it makes sense to have some "how to get rid of a succubus" content here too! You know, in case you ever want to get rid of me. I actually own the book Prayers that Rout Demons and Break Curses by John Eckhardt and I think it's a worth a look for those devout Christians looking to rid themselves of demonic influence in their lives.
Of course, I was able to read the book and not burst into flames, so I can't really testify to its efficacy - but the author is great about referencing specific Bible verses which is something I can very much appreciate and he does a good job of arranging things in a nice poetic manner.