Witness Account

My neighbor for over a year believes there are aliens living in him. He says he feels them inside him moving and is constantly taking pictures of them on his arms and legs. He has gone as far as drinking holy water and threw out all his furniture. He writes notes on his walls about them and how believes they have given him woman’s breast and a vaginia. He believes they are eating his cells and he is going to be killed, He was a normal person until 2 years ago. What can I do to help him. He’s been to hospitals . Can you help him? Or direct us where to go?