I should have mentioned too that if she DOES get some pain that the meds don't cover, have her use ICE and not heat!! Heat draws blood to the heated area and causes more swelling & pain. Ice reduces swelling & pain. So wrap some ice in a towel and place it on her back for 20 minutes every 2 hours. That should do the trick.
Sorry I forgot about that. I don't know how I could have since ice is my bed buddy. LOL God bless & take care. Hugs, Lee