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Post-inflammatory pigmentation is discoloration of the skin at the site of a healed or healing inflamed acne lesion. It occurs more frequently in darker-skinned people, but occasionally is seen in people with white skin. Early treatment by a dermatologist may minimize the development of post-inflammatory pigmentation. Some post-inflammatory pigmentation may persist for up to 18 months, especially with excessive sun exposure. Chemical peeling may hasten the disappearance of post-inflammatory pigmentation.

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What Should I Look For in an Acne Treatment That Works? Which Acne Treatment Works Best?
When it comes to choosing an acne treatment that works for you there are a lot of criteria to consider and why listening to others may be a downfall. Read on to learn more.
Source: ezinearticles.com