Post-Inflammatory Erythema (PIE): Treating After-Acne Red Spots

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.
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.

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