What Causes Post-Inflammatory Hyperpigmentation (PIH)?
Most people think dark spots appear because the skin is producing “too much pigment.”The reality is more complex.Post-Inflammatory Hyperpigmentation (PIH) is the skin’s response to inflammation—not the original problem itself.Whether the trigger is:AcneEczemaChemical burnsAggressive laser treatmentsExcessive exfoliationSkin pickingThe common...