Thanks for the query posted .
I would be pleased to answer your question .
You condition is due to a Nail matrix or Nail Plate disorder . There is procedure which is called Nail avulsion total followed by cauterization
of the affected area to treat it . The alternative is to do a chemical or electro cauterization of the nail matrix so nail will never grow out again .
or the Nail surgeon ( Dermatologist) would be able to help you with the same .
Thanks and Take care