There are skin lighteners or bleaching products on the market and readily available in the health and beauty aisle of your local grocery store or other big box retailer.
My SO used one in her anal area in an effort to try and lighten the staining that occurs after years of bowel movements with mixed results. It definitely lightened the area, however it caused itching and a slight rash to develop too. So she discontiuned its use and decided to change her mental perception as to how she 'looks' down there.
She was VERY CONCERNED about using anything near her vagina so she did not even attempt it.
It makes NO DIFFERENCE to me as I LOVE HER just the way she is now, the way she was six months ago and the way she'll be six months from now.
Perhaps you could work on your perception of how you look and learn to appreciate what you've been given rather then wanting to change it.
Just my opinion....