Often old scars get more noticeable as we age as the natural color of the skin can darken and the texture around the scar changes. The white scar tissue will stay the same color and may become depressed over time. This following would be my recommendation: Get on a skin care program with Retin A and bleaching agents to even out your background skin. (Do this for a few weeks.) In the photo it looks as though you may be getting some extra pigment on your baseline skin. I would then have you consider something like microneedling to start with. As your skin is dark you may want to start with an in office medical microneedling treatment as this does not generate heat. Heat can cause a rebound of hyperpigmentation for patients with extra pigment on their skin. Watch and see how the skin lightens to your normal color and make sure you don't overreact to any treatments. If your skin is tolerating these treatments well, usually 3-5 treatments at 2-4 week intervals, you may consider a non ablative treatment next with a laser if the skin/scar tissue is still obvious. I would NOT recommend surgery to remove the scar. I would really have you work with blending the color out. Of course you should wear a sunblock with zinc oxide or titanium dioxide daily. We also know using an antioxidant along with or in your sunblock will block out infrared rays also. A typical common topical antioxidant is Vitamin C. Good luck!