Hi,
If it is either scale rot or a burn you are almost certainly looking at something wrong with the environment.
Putting him back in that to de-stress isn't the best of ideas.
When you have him out to check and take the pics double check the temps in the hides, directly on top of the heat source etc to se if any of it is dangerously high and check the humidity and look for wet spots in the substrate.
What are you using for substrate again?
dr del