A little over a week ago Thunder twisted or did something to his hock joint. I have already spoke to the vet, and they said by the sounds of it, I need to continue to run cold water over it to help promote healing and get the swelling down. I'm sorry this is a little short, I'm at work, so typing what I can. He isn't noticeably limping and bobbing his head, but his leg is stiff and gets worse with light warm up ground work. After a week, the heat is dwindled and the swelling is almost gone, but the stiffness is still noticeable. Any idea how long an issue like this could last?