This is a very tough one. Your brother has a big problem that only he can address. You can be there for him with support when he is ready to recover. I don't think he will listen to reason before then. Maybe, and this is purely your decision, you should not allow him back into your home until he is ready. Stay calm and tell him he is welcome in your home and has your support, but your health can not take this kind of aggrevation. Tell him about SR and other help groups. If he loses his temper, close the door or ask him to leave. Sometimes we need tough love to realize what we stand to lose if we don't sober up. This of course is just my opinion. I don't know your brother or your relationship with him. I hope everything will work out for you. Good luck and keep us informed.