Well, my poor girl had the start of bumblefoot on the other foot!
I soaked that one, and removed the scab, there wasn't much behind it yet, it didn't bleed much at all. Then the bad one, that was obvious what needed to be removed, when it was all down to red tissue I knew it was pretty much cleaned out - I hope! She's got bandages on both feet now, so she's inside here in a big dog crate. Unfortunately the two cats are extremely curious, if she catches sight of one of them she goes a bit bonkers. Poor girl. Any idea how long it takes for this all to heal up?