Suggest Treatment For Back Pain

I am a 35 years old female, the symptons I have that is few days back due to continuous bike riding as pillion, I have started having lower back pain. I have taken advice of Orthopedics doctor in a reputed hospitals, The doctor has prescribed some of the medicine and physio theraphy but all in vein, little relaxation procured but not complitely recovered. I would like to take advice of yours. Do suggest me what is to be done.