Defiantly quarantine. Paper towels or newspaper, I personally prefer paper towels.
I would definitely recommend a trip to the vet for a thorough check-up and advice about cleaning/dressing that wounds/scale rot.
I have heard of others using silver sulfadine cream on BP open wounds (I havent used it).
We had a Rescue a few years ago and she had scale rot so bad her infection ran her body hot and she had to have injections.
Good luck let us know how the little guy does.