grrr...I'm always hesitant when I hear that. And GOOD vet will run a culture to make sure that it's the correct meds.
My advice, based on my own opinions only, is to be neurotic. Keep the enclosure clean, warm and humid. If you notice any bubbles, or phlegm on the walls of the enclosure/tub/tank... go to the vet and demand a culture.
Goodluck!