Abcess (Retrobulbar Abscess - Bulging eye) - Good antibiotic? Baytril Alternatives?

So for the past few months my chin has been having one issue after another in one of her eyes.

She initially had an abcess above her eye, and now her eye has started to bulge. With this eye bulge its also causing other issues (corneal ulcer and conjuctivitis currently).

I just got a new vet, and I am waiting to do further diagnostic testing. I have an appointment this coming week to do some xrays and take some blood work for my chin to see if the bulging eye could possibly be due to a...

Abcess (Retrobulbar Abscess - Bulging eye) - Good antibiotic? Baytril Alternatives?