Anyone know what can be done against a tingling area of nerves ?

I have had a small, round area of tingling nerves on my lower back for about two years now, on the right of my spine. I saw doctors and visited a physiotherapist, they agreed to my thesis about the oversensitive nerves and said that they think it comes from the accident I had ten years ago, when I was seven. I broke my left leg and as a consequence the bone grew more quickly, so that it turned out to be 1.5 cm longer than the healthy one. Due to this my hips and back are unbalanced, and the nerves shortened on the right side, I was told. Now I’m, just looking for ways to get rid of the tingling, I was told to ’‘relax’’....easier said than done-can’t really relax for the rest of my life…... ;)