My advice is to make sure she is able to sleep well. I had serious issues for YEARS because low level pain didn't allow me to get restful sleep. Acupuncture (and a lot of it) helped so much that I haven't had to take prescription drugs to sleep, wake up, or combat pain for about 4 years now. I also take Valerian root to help me sleep. So if your friends daughter is sluggish, cranky, and constantly in pain, have your friend make sure she does something to help her sleep well. Not sleeping well increases pain sensations and it's a vicious cycle.
Good luck!
-Erika