And you are see flesh every few days, then the black may just be a scab, Amanda. I thought you said earlier that it stayed black and has been that way a long time.
Sounds now, like a scab. Maybe he cut it on something? Or got it stuck and scraped it?
What do you have in the way of first aid stuff in the house?
I would clean it and then put neosporin or an antibiotic ointment on it.
Try it for a few days, see if anything improves, if not take him to a Vet.
That Drift wood piece you showed me in the pic, is there any sharp areas on that? Sometimes they are held together with screws.
Also if your going to put the ointment on, ya may want to cover the sand . Instead of dumping, if I have to put ointment on anybody, I just put a layer of paper towel over the sand a few days, so the sand dont irritate and get into sore.
I'm not real sure what that is Amanda, I'm just going on what you said that the black lifts off, and under is flesh.
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Eve

) and it looked like some dirt was on his wound. So, I very gently wiped it off, and viola. The black came off again. Last time it was very scabby feeling, today it was soft. Probably because he slept under his water dish. ANYWAY! My point: You're probably right, it is a scab. I witnessed some white-looking somewhat-healed flesh along with red, raw flesh. *Sigh* I ran some water over it, told my mom "I'm going to see what the people on kingsnake have to say about ointments"... and here I am.
Keep in touch !! 