You know what, as I was typing my large post out today, I thought, "I ought to update everyone on my arm." As you can see, I immediately forgot about that. Anyway, my arm is much less swollen (it still is somewhat swollen) and the redness has dissipated. I have full mobility again, and hardly any pain. Thanks to everyone who prayed for me. I do appreciate it. One thing I did realize: if this had happened sixty or seventy years ago, I would have had to have my arm amputated. Yes, that's scary.