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Treating PIH (Post-Inflammatory Pigmentation) from Acne Breakouts
When acne resolves, it can sometimes leave behind frustrating dark spots. Post-inflammatory hyperpigmentation (PIH) refers to the dark spots that may be left behind after an acne lesion or other inflammatory skin conditions such as eczema. The color of the dark spots associated with PIH can vary from brown, black, or purple patches of skin, depending on skin tone. There are many ways to treat PIH, including chemical peels, microneedling with depigmentation serum, laser treatments, or topical bleaching creams. The first step in treating your post-inflammatory hyperpigmentation is to consult an expert like Dr. Green, who will evaluate your skin tone and PIH before creating an individualized treatment plan.
Chemical peels such as Cosmelan and Mesopeel were designed to minimize hyperpigmentation in any skin tone, making them excellent options for treating PIH. Microneedling stimulates the body’s natural healing process. The micro-injuries created from the procedure allow the absorption of the depigmentation serum, improving areas of discoloration and lightening the skin. The VBeam laser targets redness from blood vessels in acne scarring and PIH, while lasers such as the Fraxel laser target the melanin in melanocytes. Dr. Green often recommends combining the different treatment options for optimal results.
Bleaching creams contain active ingredients like hydroquinone, arbutase, and kojic acid, which work to inhibit melanin production in the skin. Skin bleaching creams must be used correctly and cautiously, as incorrect usage can leave the skin hypopigmented, hyperpigmented, or discolored. Bleaching creams should always be used under the supervision of an expert dermatologist, such as Dr. Green, to prevent any adverse reactions. Dr. Green often prescribes tretinoin with these skin lightening agents because it increases skin turnover, treating existing hyperpigmentation.
Consistent sun protection is the most essential part of treating PIH. Sun exposure will worsen any hyperpigmentation, negating any treatments you are using. You should use chemical and mineral sunscreen, reapplying every two hours.
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