Micro-needling for facial scars
There are many good scientific studies showing that
medical micro-needling works well for facial scars such as yours. However, to be the most effective, micro-needling should be combined with the application of human growth factor serums. In my office we use motorized micro-needling machines because they are more effective than derma rolling due to the clean, more evenly distributed punctures.
You can follow the video link above to learn more about micro-needling and
human growth factor serums.