Most exotic vets know that baytril can cause necrosis at the injection point and therefore many will not use it. The thing is, baytril will almost always work when all other treatments have been exausted. You need to remember that many of these bacteria can become immuned to the treatment rather quickly.

If your snake is not getting better and cultures still test positive for infection then I would ask the vet to try a baytril treatment. My vet uses a full strength shot for the first injection and then a diluted strength for the remaining injections. If done correctly it should not cause a problem. I would ask the vet about this. It has been so long that by now your snakes immune system may be compromised. If its either watch the snake die or try baytril for a 2 week treatment, I would choose the new treatment.

Keep us updated on how it goes. Very beautiful snake BTW.