The good news is that peripheral nerves regenerate, and toxic neuropathies are a "one-hit" problem. You had your hit with Flagyl; it's now gone; and you can go on to heal. Please read the stickies and read about all the supplements which aid nerve healing. I am particularly partial to all the supplements that facilitate mitochondrial---it takes a lot of energy to send nutrients from the cell body near the spinal cord out to your pinky or toe. Acetyl-l carnitine and CoQ10 are among two of the most important here.