It’s very difficult when you love someone so much you will do almost anything for them. Have you looked into an Adfam or similar group locally to you? My mum goes to one and they give help and advice. There are groups out there for him to attend (if he wants too) that’s the hard part. You can’t make him. I do know that at some NA groups they have drug dealers hanging about outside, so because the drug has changed the part of the brain that can’t say no. The temptation is too much and they use again, when trying there best not too. Have you spoken with your GP about what help to source? X
