Monster.

Im ready to cast you out, monster of my past, so what method must I use so that you go at long last? Are you a ghost? Will salt to shoo you away? Or perhaps you're more like a vampire and garlic is the way. Maybe you are of the fae and iron will make you leave? Or must I stay awake so that you cant haunt my dreams? Are you a werewolf? Is silver the answer I seek? Or are you a scary plant and fire the key? Perhaps you're a demon and an exercist is needed? Or perhaps you're a curse and a remedy I must seek. No, you're just a memory that haunts me in the night.