I have an older hen that has a small place on one of her toes, I just keep watch on it - it's not bothering her, but where it is, if it eventually needs tending, she would get daily soaks. I would also consider using Tricide Neo if I felt it needed it. I'm not opposed to cutting out infection but tiny places...there's usually a better approach even though it would take longer, imho.That's what I've seen too....tho usually takes more than a few days.
I've had a few small and mild(no gross infection or inflammation) bumbles,
never treated them and they healed up on their own.