I've a lower back that gives me trouble all the time. About the only thing I can do is rest, muscle relaxers and ice. If the docs say there's not much they can do then the only thing left is to let it heal and see how it goes. When it comes to the back, the moment you have an operation you just set yourself up for more later on down the road. She needs to rest and saty off her feet as much as she can for now. Hope she gets to feeling better soon......lower back pain sucks.