Post-acne marks present as either red vascular spots (Post-Inflammatory Erythema - PIE) or dark pigment spots (Post-Inflammatory Hyperpigmentation - PIH). Differentiating between the two is key to selecting the correct treatment. This guide explains how to prevent and treat acne marks using topical actives and clinical procedures.
Learn parameters of acne pathology, oily skin science, dandruff hygiene, and preventative routines under clinical supervision.
A clinical-focused curriculum designed to build practical confidence and medical safety.
MBBS, DDVL (Dermatologist) | Founder & Lead Faculty
"At Skin Confidence Academy, our mission is to deliver comprehensive, clinical-grade medical training that bridges the gap between textbooks and daily practice. We prepare you to offer dermatologist-approved skin, cosmetology, and laser solutions with high-precision safety and clinical excellence."
View Mentor ProfilePIE (Post-Inflammatory Erythema) is red or pink and is caused by dilated or damaged capillaries under the skin. PIH (Post-Inflammatory Hyperpigmentation) is brown or black and is caused by excess melanin production.
Press a clear glass slide or clean finger firmly against the mark. If it temporarily fades or disappears (blanches), it is PIE (vascular). If it remains visible, it is PIH (pigmentation).
Picking tears the skin tissue and introduces secondary bacterial infections. This increases deep dermal inflammation, which recruits more melanocytes and damages blood vessels, resulting in darker, longer-lasting marks.
Superficial peels help fade flat color marks (PIE/PIH). However, pitted or depressed scars (boxcar, icepick, rolling) involve collagen loss in the deeper dermis and require clinical treatments like microneedling or fractional lasers.
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