I had a bruise 5 years ago due to a fight with friends. The important thing is that I started treating it a year ago with a Revlite laser in 5 sessions, but to no avail. I also tried Innovial injections for lightening as well, to no avail. Some of the consultants say that this is a Nevus of Ota, while others say that it is pigmentation? Please, I want a solution because I cannot live with it