I have written before that the combined use of medical microneedling (which helps to new collagen and elastic fiber synthesis and potentially autotransplant pigment producing cells from the adjacent normal areas), the concomitant use of topical tyrosine, an essential amino acid needed for pigment production, and lanatoprost, a pigment promoter, can help to restore pigmentation in regions of vitiligo, postinflammatory hypopigmentation and scars. That being said, the photo does suggest that you visit a cosmetic dermatologist to determine whether you have some more easily reversible pigmentary issue that can give rise to a similar picture to the one seen here, such as a fungal infection known as tinea versicolor, which can persist for many years if left untreated. Hope this helps. Best of luck