I know there is a difference but I can't remember and I have seen many in my recovery. Hopefully his doctor can give him a referal. I really feel with one it is very key and I mean this from the heart to have one who really deals a lot with the issue at hand. It can make a huge difference. It is more I think getting a plan that is a road map to make good choices based on a persons needs and to work on the where and whys one struggles. Also it can help see emotional connections too. Hopefully if your husband starts making better changes the feeling he gets(better and less pain) it will give him the motivation to keep going.