You need to learn from someone who specializes in dealing with them. Norvel Hayes KNOWS how to make these things GO and has been doing this for MANY years. He is THE man to learn from if you want to learn HOW to get rid of these things.
How to Cast Out Devils - Norvel Hayes
This first video of Norvel Hayes tells about the miraculous deliverance of a 21 year old guy in Chattanooga, TN. He had totally lost his mind, but after Dr. Hayes ministered by praying for him all night long, his mind was completely restored back to him by the power of God:
How To Make The Devil Leave You Alone
Don't Give The Devil A Choice
Lester Sumrall is well known for his encounter with the "invisible boy"
Cornelio Closa, the disappearing boy
The story of the invisible boy is true. It is a story to which I was intimately related. It is about a young Filipino boy who was tormented by an alien entity for more than a year.
This spirit would cause him to disappear from a classroom at school or from his home. Cornelio’s father would nail the doors and windows shut, but Cornelio did not need natural openings to get in and out of the house.
The parents told me that the whole family would be in the front room of their home and their children would be down on the floor playing. Suddenly, with everybody looking, Cornelio would just disappear. The other children would start coughing and vomiting because of the stench that he would leave behind.
Because of his disappearing from the classroom, the boy’s school teacher had a nervous breakdown and never recuperated sufficiently to teach again. We investigated the whole matter very carefully. We didn’t want the slightest possibility of falsehood or misrepresentation in it, because we made a film of it. It is surely one of the most well-documented cases in our files.
‘No doubt, this is the greatest miracle outside of the Bible, and as great as any miracle in the Bible’. ~ Rev. H. A. Baker:
Lester Sumrall, Alien Entities pages 141-148 Source