I know that it is difficult to watch him try to walk when you know he is in pain, there are many anti inflammatory drugs that can be used to decrease the pain and make the joint more mobile. even a shot of a pain killer will only work temporarly. I wish i could offer more, i know what it is like to watch someone you love be in pain, keep doing the heat and alternate with ice, give the vet a call and see if he can give him a shot of toradol ( anti inflammatory)
cynthia RN
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