First, has this been diagnosed as B6 neuropathy? There are a lot of reasons for nerve pain and B6 is one of the less common of them. It's possible you can get rid of some excess B6 by supplementing with folate and B12. The three are in balance, so excess amounts of any of them can cause an imbalance in the others (as can amounts that are too low in your diet) and so an excess of B12 and folate can leach out some B6.