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Dr. Andrew Rynne
MD
Dr. Andrew Rynne

Family Physician

Exp 50 years

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What Causes Acne On Face Leaving Behind Black Scars?

Hi, my skin is very prone to acne, I have had it since grade 7 and I m in grade 12 now. But recently I have some pimples on my chin and it hasn t gone away, I mean for about a month and a half now. Just a few days ago one of the bigger pimples has turned black. It s just a small bump, it doesn t hurt or anything. It just looks bad. Is it some kind of infection, or just dry blood under the skin? Is there anyway I can make it go away??
posted on Thu, 25 Sep 2014
Twitter Mon, 20 Oct 2014 Answered on
Twitter Mon, 20 Oct 2014 Last reviewed on
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Dermatologist,  's  Response
Hello,

I understand your concern for black scar like marks left after the acne. If is quite common to find such kind of marks due to a simple phenomenon known as Post- inflammatory hype pigmentation.

It is due to over-activity of color producing cells which cause the pigmentation. I suggest you to do sun protection so that these spots should'nt darken more.

In my patients I suggest them to apply a cream containing kojic acid with arbutin in it at night time. Apply the cream in thinnest possible amount so that it should not be visible to the naked eye.

You can take further guidance from your treating dermatologist.

All the best.
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What Causes Acne On Face Leaving Behind Black Scars?

Hello, I understand your concern for black scar like marks left after the acne. If is quite common to find such kind of marks due to a simple phenomenon known as Post- inflammatory hype pigmentation. It is due to over-activity of color producing cells which cause the pigmentation. I suggest you to do sun protection so that these spots should nt darken more. In my patients I suggest them to apply a cream containing kojic acid with arbutin in it at night time. Apply the cream in thinnest possible amount so that it should not be visible to the naked eye. You can take further guidance from your treating dermatologist. All the best.