I will encourage you to seek vet care.before I put her to soak I noticed something sticking out, so I grabbed sterile tweezers, sprayed it with Vetericyn and started pulling at it, it seemed like puss so I kept pulling at it until it came out all of it. Not much. It might have been some of the ointment but im not sure, I have noticed that the white stuff in the middle is just skin.
Not a lot has changed since the 7th except now the foot looks like is has some swelling.
I think it's time to see the vet.