The Derma Corner: What to do with hyperpigmentation from acne (or PIH) I’ve talked about acne last time but now let me discuss one of the two
dreaded consequences from having a breakout – post-inflammatory
hyperpigmentation or PIH. This happens because any inflammation to the skin
(e.g. acne, eczema, irritant/allergic reaction, trauma, etc.) will have
inflammatory cells causing a cascade of events that will lead to
melanocytes (pigment-producing cells of the skin) to produce more melanin –
what’s causing the skin pigmentation.
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