I have a sun spot that I realize these aren't really for, but it's small -...

I have a sun spot that I realize these aren't really for, but it's small - like a freckle, and I thought I'd give it a shot. I like the way they stay stuck, but I didn't notice much of a change. The only reason I took off one star is that the patches are pretty uncomfortable at first - feels like needles going into my skin. Excited to try them on a dark spot from a pimple.