Last year in november I had a TCA cross treatment for a old piercing Hole in my nose. Suddently a darker hue appeared around the Hole and this won’t go away. This makes it much more visible. Using spf 30-50 all year around. The doctor say that I Can try TCA cross again because normally the treat 3x for it to close much more, but He says He cannot promise that it won’t darken my skin! It there any other treatments for closing old nose piercing?