So listen, you can see his injuries better in person: IF it's NOT deep or bleeding a significant amount (a tiny amount of blood would have been normal from his
shedding & pulling of the skin in the process & thus opening the wound up a little) personally I'd apply* some antiseptic as I previously suggested, & keep him
clean (on paper towels) and skip the vet visit...UNLESS it seems to be infected. And if you aren't sure, a vet visit would be best. *Don't remove any stuck skin,
apply antiseptic over/into/onto the injured areas as best you can. Betadine dabbed on will probably penetrate best just to clean it up (& since it's watery, might
even help the old shed skin come loose)...then dry & apply a little ointment. Repeat once a day or so (unless you take him to vet & have other instructions).
Again, I can only tell so much from online. Use your best judgement...we don't go to the doctor for a skinned knee, right? So if it's the equivalent, you can treat
much the same. But since it's been a couple weeks & you haven't applied any antiseptic, I am concerned it might be infected. And I don't know how good of a
"nurse" you are...so it's hard for me to advise.