I have a lot of pain in my lower back, hips and legs and can't walk without this terrible pain that causes me to fall to the floor or ground. I need something stronger to get rid of the infection. I tried Lazer treatments on my lower back about a year ago and within a month, I had no pain whatsoever. I am taking 200 mgs of Celebrex a day. Can I increase the dosage to 400 mgs.?