How to Reduce Cutting Scars from Self Harm?

Currently we are performing trials using Erbium resurfacing for cutting scars. We cannot tell you the results of this trial at this time but several types of laser resurfacing such as fractional or Erbium may offer hope.

Hi, your scars can be effectively treated by "dermabrasion and thin skin grafting method" invented and published by me. Kind regards. 

There is no one treatment that is universally best for all scars. You need the area examined by a good plastic surgeon to get recommendations for treatment.
Best Regards.

Unfortunately, once a knife or instrument cuts the skin, the scars are permanent. Sometimes scar revisions can be performed to minimize the amount that are on the arm or other body part.