Are you sure she just isn't simply shedding?

Often snakes will shed in small pieces or even scale-by-scale if the conditions in their tank are incorrect - namely too hot and/or too dry. If there are no open wounds or blistering, Neosporin isn't necessary and simply increasing the humidity with regular misting will help her get through it, and like Slithers said, getting a thermometer and hydrometer will help you prevent issues like this in the future by making sure the conditions in the cage are proper. I realize vets can be expensive, but part of
responsible pet ownership is being able to take your pet to one if the worst should occur.