I have scorching pain in right knee below patella (no swelling) and right thigh from more than a year. From 3 months the pain is severe with pinching nerve sensation and now the pain extended to low back to below the knee. From 2 weeks the pain is also in pelvic region/groin region. The pain has no response to aceclofenac and thiocolchicoside 4 mg but has very little response to etoricoxib and thio-4.and also no response to 1 week physiotherapy (traction & stimulation) traction is limited for 3 days only as the pain is more all over the leg. I had X-rays of both L-spine and knee both has normal report. What would be the solution? All pain is like needling sensation.