I had a major pimple on my nose several years ago. I picked and bothered it so much that a scar was left. It almost looks like a pimple now, but it won't go away. It is just a small round bump, skin colored. I figured it was a scar, because I messed with it too much. But I was wondering if the new Mederma cream will work on it? Will it flatten it out, or just change the coloring so it doesn't show as much? Anyone used it before? Thanks!