well, for sure it is infected, ewwww sorry about that
obviously going to the reg vet tomorrow is good, but I'd say take the sock off and let that puppy breathe. You'll want it to dry out.
Could she have a thorn in it?
That antibiotic is oral? But if not, topicals normally never work for us as they are quickly licked off.
I know everyone is sick of hearing about the Kong Cloud inflatable collar but I can't say enough good about it.
My idiots hate it, but except it. And it is very tough.
Good luck, it looks similar to something we had before and it cleared up, but it needs AIR