There's no help I can give you and I'm so sorry this is happening to you. You're in the right place, this forum has helped me immensely already and I signed up yesterday.
Know that it is his choice and his alone to recover. He needs to get to that place where he needs and wants to be better more than anything and you can't push him there, or love him there, or take him there. This is a hard road but we can walk it together.