I’m sorry some folks are like this. It looks like a reaction to something or it could be early staph.
Doesn’t look like a burn or intentional.
Hard to say...but it looks nothing like the posion ivy my number 4 has right now in the healing stage.
if it bothers him try benzocaine cream or foille if they still make it...it was the cats pajamas for blisters in my day but smelled funny...no one here probably even remembers it
Unfortunately, I can't tell if it's bothering him. He doesn't communicate except through disney excerpts or when he wants something from you he'll ask. When you ask him a question, he parrots what you ask or he can give yes or no, but you have to discern whether he's answering the question or trying to get you to leave him alone. So, it's a challenge.