I forgot to tell you that your post did help. My knuckle is still really red and I'm still swollen but at least I've got a full range of movement and no bones sticking out. This didn't stop me from being a douche and testing out the diff in an undisclosed location earlier.

But I tried the beer approach to killing the pain and got nothing. Fortunately, I had a glass of ice water to soak it in most of the night. Time to sleep and see how that goes.