Physician-Supervised · Skin of Color
PIH Treatment for Dark Marks After Acne or Irritation
Post-inflammatory hyperpigmentation (PIH) is a flat dark mark left after skin inflammation — often acne, an ingrown hair, a cut, a bug bite, or an irritating treatment. It can affect every skin tone, and melanin-rich skin is especially prone to marks that linger. The safest starting point is to calm what caused the inflammation, then fade the leftover pigment without creating more.
Understanding the Condition
PIH Treatment for Dark Marks After Acne or Irritation
Post-inflammatory hyperpigmentation (PIH) is a flat dark mark left after skin inflammation — often acne, an ingrown hair, a cut, a bug bite, or an irritating treatment. It can affect every skin tone, and melanin-rich skin is especially prone to marks that linger. The safest starting point is to calm what caused the inflammation, then fade the leftover pigment without creating more.
This page is for anyone whose breakouts, ingrown hairs, or injuries have healed but left dark marks behind. Kintsu has deep expertise in melanin-rich skin, where pigment can be more reactive, and welcomes every skin tone. If past treatments left new dark spots, a conservative, physician-supervised plan may be a better fit.
Is it PIH, melasma, or an acne scar?
They can look similar, but they are not treated the same way. Identifying the cause first helps us avoid treating the wrong concern.
PIH
A flat dark mark after a breakout, ingrown hair, bite, injury, or irritating treatment.
Melasma
A recurring, often symmetrical patch pattern influenced by sun, hormones, and genetics.
Acne scarring
A change in texture — such as a pit, raised area, or indentation — rather than color alone.
Our Approach
How We Treat It — Carefully, for Skin of Color
We treat PIH in two parts: first reduce the source of inflammation, then support the skin in clearing the leftover pigment. That may include a barrier-friendly routine, daily sunscreen, supportive topicals, and carefully selected in-office options. We start conservatively and adjust based on your skin's response. The aim is steady improvement, not a quick fix that triggers more pigment.
Calibrated Options
Treatments We May Consider
Every plan is matched to your skin during a physician-supervised consultation. Some options are used cautiously, or not at all, for Fitzpatrick IV–VI skin.
Microneedling
Microneedling
At conservative settings, microneedling can support skin renewal and help fade post-inflammatory marks over a series, spaced to protect darker skin. Learn more
Chemical Peels & Skincare
Supportive topicals & sun protection
A gentle, barrier-supporting routine with daily sunscreen helps marks fade faster and reduces the chance of new PIH forming. Learn more
Common Questions
Questions, Answered
What triggers PIH in darker skin?
Any inflammation can — acne, picking, ingrown hairs, injury, or harsh treatments. Because melanin-rich skin reacts strongly to inflammation, even minor irritation can leave a dark mark, which is why calming inflammation comes before fading pigment.
How is PIH different from melasma?
PIH follows a specific inflammatory event and usually fades over time as the skin recovers, while melasma is a chronic, hormone- and sun-driven pattern that tends to recur. They can look similar and sometimes coexist, so an in-person assessment helps tailor the right plan.
Which treatments avoid making PIH worse?
Gentle, low-inflammation options — conservative microneedling, supportive topicals, and daily sun protection. We avoid aggressive or heat-based treatments that can add inflammation to melanin-rich skin and deepen the marks we are trying to fade.
How long does PIH take to fade?
It varies by depth and skin tone, but PIH typically fades gradually over weeks to many months. Supportive treatment and consistent sun protection can help it resolve faster, while sun exposure can prolong it.
Patient education sources: Skin of Color Society · American Academy of Dermatology · 2024 systematic review
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Ready for a plan that does not add more pigment?
Book a complimentary PIH consultation in Manassas Park. We will explain what may help, what to avoid, and why.
Last updated: June 2026