Suggest Treatment For Lower Back Pain Radiating To Leg

hi i am a 48 yr old female, 4'9" height. wt 80 kgs, current health status - hypertension 130/85 under medication - Tazloc H once in morning and Nebicard 5 mg at night,

suffering form lower back pain more severe on LHS near hip region, extending upto left knee. pain aggravated by exercising in gym (only cycling and strtching exercises), subacute pain persistent otherwise, xrays reveal only mild degenerative changes, no slip disc. pls suggest what to do