Yea looks like a burn get him on paper towel substrate to help keep it clean. Problem shedding looks like from low humidity as stated soak him an you can let him "dry" himself by loosely holding him in a towel an letting him slither threw it. Take sarin wrap an cover like 3/4 of the tanks screen lid, I have one snake still in a tank I use a towel on it with a big water bowl he can fit in a I spray the tank, when he sheds I spray tank more and dampen the towel on top.