How to fade post-inflammatory hyperpigmentation

Post-inflammatory hyperpigmentation is colour left behind after skin inflammation or injury has settled. Acne, atopic dermatitis, bites, burns, and cosmetic irritation can all leave darker areas. The mark itself is not the same as active acne or eczema, so treating only the colour may miss the reason it keeps returning. Rubbing, scratching, and picking can prolong the pigment response.

First manage the active condition with a suitable cleanser, moisturiser, and prescribed treatment when needed. Apply daily broad-spectrum sun protection to reduce darkening from light. Avoid harsh scrubs, bleaching mixtures, and frequent product changes. A dermatologist may consider skin brightening treatment, a chemical peel, or picosecond laser treatment after examining the mark and your skin’s tendency to react. Introduce one active approach at a time and stop if burning, swelling, or a worsening rash develops.

Get assessed if the original rash is spreading, painful, blistering, infected-looking, or affecting sleep, or if a dark mark is changing independently of the rash. Professional advice is also sensible when pigmentation follows a strong peel, burn, or reaction, because additional irritation can make recovery harder.

Is the inflammation fully controlled? Which cause is most likely in my case? What can I use without irritating my skin? Would a peel or laser be appropriate now, and what signs would mean I should pause treatment?