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Pink, red, or purple post-acne lesions are technically called post-inflammatory (or post-acne) erythema — aka PIE. With the help of Sandra Lee, MD (aka Dr. Pimple Popper), we explain what causes PIE, how it's different from hyperpigmentation (PIH), and what you can do to treat and prevent post-inflammatory erythema.
The name might not be familiar — but those frustrating pink spots that appear post-acne probably are. Here's what do.
PIE an PIH Acne Marks - What's The Difference, Treatments?
What Is Post-inflammatory Erythema (PIE)? - Science & Skincare
Treating Erythema, Hyperpigmentation Acne Scars – AziMD Skincare
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Easy as PIE (Postinflammatory Erythema). - Abstract - Europe PMC
Post inflammatory hyperpigmentation? Red marks? Rash? (Pics
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