When is azelaic acid treatment recommended for post-inflammatory hyperpigmentation?

Post-inflammatory hyperpigmentation is extra pigment that can remain after acne, eczema, an injury, or another irritated skin problem has settled. Azelaic acid can help calm inflammation and interfere with pigment formation, so it may suit marks linked to acne or recurring irritation. It does not remove the trigger by itself, and the mark may continue to deepen if the original inflammation or repeated sun exposure is not controlled.

Use the product exactly as directed and begin gradually if your clinician advises this, because stinging, dryness, redness, or peeling can occur. Apply it to clean, dry skin and avoid eyes, lips, broken skin, and freshly irritated areas. Use gentle cleansing and daily broad-spectrum sunscreen to reduce further darkening. Stop and seek advice if swelling, blistering, severe burning, or a spreading rash develops. Treating active acne or dermatitis at the same time may be necessary to prevent new marks.

Arrange a dermatology assessment if the pigmentation appeared without a clear preceding rash or injury, changes rapidly, bleeds, becomes painful, or has an unusual border or colour pattern. A clinician can distinguish post-inflammatory pigment from other causes and check whether an active condition needs treatment before a fading routine is started.

Ask what caused the mark, whether azelaic acid is suitable for your skin, how often to apply it, what to combine or avoid, and how to manage irritation if it occurs.