Ditto that..
I raise overall temp in cage to 90-92, with the hot spot to 100-105. Take out whatever substrate you are using, use newpaper as a temperary substrate, clean everything with a reptile safe disenfective, and clean the water bowl daily.
I use Baytril injectable myself. 0.4 mil to every 1000grams everyday for 5-7 days, re-evaluate after 3-5 days, and possibly go for another round of 5-7 days. That's how I treat, and usually works after just one round of antibiotics. I leave the temps up for a week or 10 days after treating, just to be sure it's all kicked out. Then I go back to normal temps, disenfect and go back to aspen again. Then, I keep a close eye on that snake for a few weeks to be sure it doesn't get a reinfection.
I learned the hard way years back, don't mess with RI's in balls... Nip them in the bud quick...
EDIT: I've been treating my own snakes for a long time, my vet supplies me with my Baytril, I don't suggest you treat them yourself unless you've had plenty of experience... Just had to add that!