Agree on the culture. If this is a big snake baytril is a bad idea. The amount needed for big snakes in injections can cause tissue/skin necrosis and muscle damage. Gaping holes when it's a really bad reaction. I used baytril on my smaller 9ft retic for about 3 shots but I noticed the burning it was doing and the lumps it was forming and stopped treatment. Went to a different vet and got a different antibiotic that worked way better no damage couldn't even find the injection sites the day after. I would never risk using baytril on my big guys. From what my vet told me it's the crazy amount needed for the giant snakes that causes the bad reaction.
My girl is only 22lbs and the amount of baytril needed to treat her smaller size was causing tissue damage.