Hi,
I have found that diet and exercise will help reduce acne and then to get rid of the scars I use either bio oil or some home remedies such as apple cider vinegar or olive oil.
I found these home remedies from this site:-
scarsnomore.net
Hope these help you to sort your scars out. As long as they are not to deep then these methods will work, if not you might need to see a beautician.