How can I get rid of this punch biopsy scar? (photos)

Hi there! I am 23 y/o and have this scar right below my belly button. I have never shaved my stomach, but the one time I do I get an ingrown hair! I went to the Derm and they said they needed to do a biopsy to be sure. A punch biopsy. Now I have this scar. The bunch was done Sept 2016 and it's now Feb 2017. They did not put in any stitches. Part of me thinks it healed so dark because of blood. What can I do? Laser? Hydroquinolone? Stitches? Thank you for reading and your advice!