Let's see if the Baytril does the trick.
By trick I mean knocks it out for good. If it comes back in one week, two weeks or even ten, then maybe you need to think hard as to why an RI would respond to an antibiotic, go into a seeming stage of remission and then come back.
At that point, we can have a chat about ophidian viruses and why antibiotics appear to clear them up.