DARK SPOTS PROBLEM!

Alexsis
I have a lot of dark/ light brown spot on my cheeks and chin. I don't get pimples all the time, but when I do it ALWAYS LEAVE A BROWN SPOT! I start getting them during my junior year in high school and I'm a freshmen in college now. I HATE DARK SPOTS AND WOULD DO ANYTHING TO GET RID OF IT! Any advice??