Answers (1)
It's somewhat a lie. If you bless the house properly, and then perform an exorcism properly, the activity should cease.
Of course, it might take a few tries, depending on how strong the spirit is. If it's a ghost, it'll probably go away after one or two tries. But if it's a more malevolent, angry spirit, or even a demon, it'll take a long time.
I read something about this and it said blessing the house will only make the haunting worse is this a lie?