How can you take care of redness on skin?

Anonymous
So I used to have acne like a regular teen before I figured out how to take care of it. Now I don't get acne but I have redness I guess you could call them scars and they won't fade away or anything. Its been like this for a while so I was wondering what I could do to get the redness down or something. I heard vitamins work but I don't know what type..
How can you take care of redness on skin?
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