What is the best acne treatment out there?

Hi, my name is Alexis. I have a question. What is like the best acne treatment out there, that is affordable too? I mean I don't have like bad, huge, red acne. I have like little pimples on my forehead and cheeks and they are like really really hard to get rid of! Can u please give me an answer because I do not know what to do anymore!
<3 Alexis