There isn't a whole lot you can do without meds from a vet. Keep her enclosure clean. Paper towels and clean water daily. Make it as sterile as you can! You can increase the heat a smidge that might help her fight the infection faster.
Make sure your vet does a culture so that you can get meds that specifically target the type of infection she has. A round or two of antibiotics and she should clear right up. If you catch the RI early it is easier to treat.