(Skin Concerns) Any way to get rid of scars like this? (flat, smooth and discolored)

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http://m.imgur.com/RpjW5HmI got this scar from a scar removal from an unskilled doctor who literally numbed it and sliced it off with a blade. I have another similar scar on my forearm but it's a lot darker. What can I do about it?
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Submitted by eksinya