Hi I've also got a horse recovering from laminitis. One of the most important things is to get your horse off grass completely, I find a dirt yard is better than a stable as it allows the horse to move around more and increases circulation. I'm not sure what type of hay you're feeding your horse...
Hi I've also got a pony with laminitis, when I was reading your post you said one hoof seemed worse than the others, this could be an abscess in the hoof, this quite often occurs with laminitis, I'm not sure why.