This scar should fade with time. You can apply some vitamin E or Mederma( which you have been applying) on the scar. If it still persists then you can go in for plastic surgery or laser treatment.
It is very difficult to precisely confirm a diagnosis without examination and investigations and the answer is based on the medical information provided. For exact diagnosis, you are requested to consult your doctor. I sincerely hope that helps. Take care and please do keep me posted on how you are doing.