I feel your pain. I recently went through a similar bout with RI's and my vet is not a reptile vet.however he is the only exotic vet within a couple hours drive. DVM Dale Covy Dover, Ohio. I give you that name incase there are any questions about what I'm about to say. Ask your vet about convenia. It is a long lasting antibiotic for bacterial infections developed for dogs and cats. However he saw it fit for reptiles and other animals. My worst case required only 2 injections 6 weeks apart and correct husbandry to make a full recovery. And the 2nd shot was just to ensure that he was 100% because the vet thought he still heard a slight rasp in him. I've used baytril years ago and thought it to be stressful to the animals and tylan 200 didn't help me at all when I tried to self Medicare them. Convenia really turned it around for my collection. I also kept all ill snakes in quarinetine. And only newspaper substrate and complete tub and water dish swap out daily until all animals were cleared by my vet. It has been a couple months now and all are doing great.