Nose piercing black stain

I’ve had my nose pierced for probably about 15 years. I didn’t always use the best jewelry! I was young and didn’t really know better. A few years ago I noticed the skin around my piercing was very stained black. It’s also on the inside of my nose around the piercing site. I purchased a better nose ring from a jewelry store and figured with time it would start to fade and get better. Well it hasn’t and it really really bothers me. To the Point I never ever take my nose ring out because once I do it’s very very noticeable. It’s hard to cover with makeup. Does anyone have a similar situation? How do I get rid of it ? Or just fade it significantly. Help.