Thanks for the quick response! I'll try to fix the first picture, there are two more on his underside that have been there for a while now. I suppose nolvasan soaks might have been keeping them from healing properly though.

For what it's worth, he's also had some watery bloating at first that's now disappeared after the nolvasan soaks, and the sore on his back came about because of a burst cyst. Anything I should be looking out for?

It's really hard to see with the flash, but I do feel like the layer of skin on like the inside of his legs is absurdly thin.