Thanks so much for the reply!
No swelling or tenderness or anything like that as far as that patch goes. It just looks like old shed but I’m paranoid about the tiniest things. I do get the feeling that he’s trying to taste but earlier today he actually latched on for a few seconds to my pant leg when he was sitting on my lap. I tried the repi-cal pellets and Cleo wouldn’t touch them. I’ve tried calcium/D3 dust too and he wouldn’t touch anything with that on it either. I’m posting a few pictures of his leg and of him. He’s not too fond of the camera though.