oh poor baby, that is so awful. Keep it moist, so help the granular tissue regrow, I would use some kind of antiseptic that doesn't burn initially, and then just use a saline solution to keep it clean. Don't keep adding disinfecting stuff to it, as it prevents granular tissue regrowth. Maybe google burn treatments...I know he isn't burnt, but it is a similar process to get the tissue to regrow.
Sending some healing thoughts...
Sending some healing thoughts...