when i started hearing voices the hospital put me haldol, i stopped taking the meds, a month later they were yelling loudly. from then on its been hell. Im on clozapine now, wish they had put me on that first. i believe its a technology of some kind, implants, beams, fields?? anyhow ive found ways to reduce the severeity. But i recommend to stay on meds. if meds arent an option, high niacin regiments might help if hes not diabetic.