Your blood sugar has most likely been out of control for quite a while. You need to get your blood sugar back in the normal range and keep it there. Even at this it will take a long time if ever to get rid of the tingling. Diabetes is a long progressive disease and you cannot undue years of problems in just days. It will get less and less with controlled blood sugars and hopefully go away in the long run. Good luck and keep a close watch on your blood sugar.