How to get rid of and prevent pimple scars?

I'm 17,don't have many scaring from pimples,but have some. I would like too know if there's anything that anyone knows of that will help them go away or prevent more.
I use vitain E,and the brand OLAY on my face daily. They help very well,but out of curiousity if there's any good products,or advice I'd appreciate it.

I dont have what you can use but try not to pop them. I dont remember where I read it , but popping pimples can leave scaring