I have never had to deal with this before, I am looking to buy a donut for his pastern but looking for other advice also. I have been putting DMSO on it and the swelling has gone down.
The only thing changed with this horse is we put a plastic 3 degree wedge pad on his hoof. I guess he just sleeps on his chest and folds his legs up tightly when he sleeps. The pad would be removed before his first show.