I'm glad he's giving you trouble, actually. It shows his fighting spirit.
I was wondering what you decided to do about the UVB. I was thinking because of his eyes and the problems associated with the Zilla bulbs that borrowing one of Burt or Ernie's UVBs would be the better option. It would probably be helpful to have it on him, even if it is just for a few hours. His body is fighting the infection and dealing with the antibiotics, and I am sure that a proper vitamin/mineral balance would be helpful in that. At the very least, a few hours under a good UVB can't hurt, while the "bad" UVB could exacerbate his eye problems.
All you can really do is be super patient with him. My personal experience with sick reptiles is that as they get better, they do so in increments so small they are almost unnoticeable, and they draw it out F-O-R-E-V-E-R. Then, all of the sudden, when you are sure nothing has changed, they are totally fine. Not saying that is true in every case, but it is certainly what I have seen.
Best best best of luck with him, and thank you for being such an awesome beardie parent. This little guy, and all your four-legged companions are super lucky to have you, even if they are all dying of jealousy. :lol: