First, let me emphasize that while unfortunately, with our current technologies, no mature scars can be completely eliminated, they can, however, be improved significantly. Although the photo provided is not optimal, it appears that the scars are indented, as well as having stitch tracks. If so, my approach would be first to elevate the scars using subcision (with or without the addition of a filler). Once this is achieved, if still felt to be necessary, any remaining surface textural and tonal irregularities (i.e. the stitch tracks) may be further improved via microneedling (aka fractional microneedle resurfacing).. Although fraxel lasers are often marketed heavily for scar treatment, the procedure is relatively expensive and the results tend to variable and unpredictable. For more information on subcision and fractional microneedle resurfacing, you can check out the archives or Realself.com. Be sure to see treatment by a physician expert in scar treatment and make sure to ask to see his/her before and after photos.