Didn't the doctor suggest physical thereapy? I would call the doctor and discuss this and follow their advice--not anyone on this message board. People may have opinions regarding what should or could be done, but they haven't seen the x-rays and the specific case. Only your doctor is qualified. You don't want to do something that could damage it further or harm the healing process.
I would call the doctor and take your child in for an appointment if she is in pain. I know sometimes Doctors may seem rushed or you forget to ask questions, but it is best to let them know that you are concerned and have questions. Have your questions written down. He may be able to advise you over the phone and since being the professional, would make that call. He knows your child's specific case.
Sure hope this helps, a little.