MRI results shows my father has developed stenosis. The surgeon is recommending surgery, but before surgery he had asked for different tests like blood pressure, sugar and heart echo (all these conditions exist in my father). So I found another surgeon who specialize in what he calls ozone therapy. I searched internet and found that it is recent non invasive method. Can someone tell that this procedure is temporarily (like steroid injections) or permanent? Also how can I know if this is FDA approved procedure? Web searched did not gave to the point answer.