You can't just stop. It so dangerous. He needs to consult a doctor and perhaps go to a detox. If he's an alcoholic it won't matter if he's taking medication or not. His body physically needs the alcohol. I hope it works out for you.
Jenn is right, it can be very dangerous but again so can the bacteria. My concern is what has caused the bacteria and is it alcohol related?
Randy
P.s. I also had to comment that I love the screen name! he he