gerard
thanks, shari for your detailed and very helpful response. sorry i did not reply earlier. my wife has started taking muscle relaxants which has been causing extreme drowsiness affecting her work. She has been recommended TENS-(Transcutaneous Electrical Nerve Stimulation) and hamstring stretching exercises along with analgesics. She is also advised occupational therapy regarding correct posture while at work and at home. she is grateful for all the support and helpful advice on this forum. thank you once again, regards, gerard.