I've never used F10 that way (nebulized) though I'm aware that some say it's effective...personally I'd see the vet first. In the meantime I'd probably bump
up his temperatures by a couple (1-3) degrees, assuming they are already correct (?). I wouldn't want the F10 treatment to interact (negatively) with what-
ever the vet thinks is best...remember, that's what you're paying him/her for. Do talk it over with the vet though. Medications all can have side effects...
and while one may be effective, two together might harm the snake.