Post-Inflammatory Hyperpigmentation (PIH)

Post-Inflammatory Hyperpigmentation (PIH) is a common skin condition where dark spots or patches appear after the skin has experienced inflammation or injury. This can be caused by acne, eczema, burns, cuts, or cosmetic procedures. PIH occurs when the skin produces excess melanin—the pigment responsible for skin color—as a response to inflammation, resulting in flat, discolored areas that can range from pink or red to brown or black, depending on the skin tone.

PIH is not harmful but can be distressing, especially when it affects visible areas like the face or neck. It tends to fade over time but may take weeks or months without treatment. People with medium to darker skin tones are more prone to developing PIH, and improper handling of skin issues—like picking at acne or not using sun protection—can worsen the condition.

Effective treatments for PIH include chemical peels, laser therapy (like PicoSure), microneedling (CIT), topical brightening agents such as vitamin C, niacinamide, kojic acid, and hydroquinone, and sun protection to prevent further pigmentation. A personalized approach combining in-clinic procedures and a targeted skincare routine can help fade the spots faster and restore even skin tone. Consistency, patience, and professional guidance are key to successfully treating PIH.