I am a certified chemical dependancy counselor. I would strongly suggest you ask his current treatment center this very important question. Ask them how you can support him stay sober, also ask if they can or know of anyplace that can offer YOU support. A place you might want to look into is your local co-dependancy anonymous or Al-anon. more importantly as them if he will be going to an inpatient treatment center after detox. it is very important that he have good aftercare.
That's a hard one. Coming from someone that's been there, all I can tell you is that they have alanon meetings for people that love alcoholics. He has to work his program and you have to work yours. You can't force/ beg/ plead or make him do what he needs to do. I wish y'all the best of luck.
Wow, that's a rough situation and I'm sorry you have to go through it. I would say, get rid of any alcohol in the house and as soon as possible, sit down with counselors and work out a plan that works best for the both of you. You can both join support groups, they are not just for the person that drinks the alcohol anymore. And if you are religious you can always talk to people in your church and join prayer groups or whatever you are comfortable with.
Do you have any way for him to go to a rehabilitation center after this? This is work for counselors and professionals who know exactly what to do. I'm not saying you can't help, but the both of you need more time than just 4 days of detox to form and execute a good plan that will work. I just lost my daughter in law to this. To detox is one thing. Learning the skills to stay off alcohol is another. I offer you the best.. It's hard work I know.