The vet said not to worry, try cold hosing it twice a day and to give it some time. Since he was only a yearling, he had the entire year just to grow and relax...and the swelling would come and go. This past spring, since his knee was still swelling, the vet recommended banamine once daily for 5 days and to give him an oral glucosamine/chondroitin/msm supplement. Since the swelling isn't from inflammation, the banamine had zero affect on it.
I would really like to show him in halter this coming summer. I was told that with his knee being like this, halter is definitely out. Other than being horribly hideous to look at, it doesn't appear to be a problem for him, but I worry that as I begin to trail ride and compete (I am an avid team sorter) with him it may begin to lead to calcification, adhesions, and/or arthritis....or worse.
Does anyone have any ideas or experience with this? I would SO appreciate any help y'all might have to offer!