Just cleaned her up again. Her vent does not seem to be quite as swollen or raw looking as yesterday. No cuts around the vent, the blood definitely appears to be coming out with her feces. I've seen a couple of bits of poops around the run today with a little blood in it just like the photo...
I did a search and most topics on pastey butt are with baby chicks, however I have a 10 month old pullet that I think just started laying (it's either her and her sister or just one of them starting to lay).
She has the classic build up of poop all around her vent and the area looks slightly...