anti parasite medicine, prayer, and work on strengthening your relationship with him. Help him to think critically and approach his life from a God-centered view.

I would not send him to any camp. It's like you're just throwing your hands up and giving up, which will make him feel worse in many ways. Plus, you have no idea what kind of worse influence he would run in to there, being put into an atmosphere with a bunch of kids who struggle with the same thing.