So glad to have found this recent thread. I had to give a bath to one of my poopy butted EEs a couple of weeks ago and was surprised to notice a bumblefoot type "scab" on the bottom of one of her feet. Since there was no inflammation, swelling or limping I decided to just keep an eye on it rather than treat something that didn't appear to be causing a problem. I had had no idea that the scab could be there without infection.