What are the treatment options for exogenous ochronosis?

Exogenous ochronosis is a pigment disorder that can follow prolonged or repeated use of some skin-lightening products, particularly products containing hydroquinone. It may appear as blue-grey, grey-brown or dark patches, often on areas that were treated. The colour can be stubborn because pigment may be present in deeper layers of skin. A dermatologist may also consider other causes of facial darkening before confirming the diagnosis.

Stop the suspected lightening product and bring its packaging or ingredient list to your appointment. Fractional laser treatment creates microscopic treatment zones that can encourage gradual renewal, while picosecond laser treatment uses very short pulses to target pigment. A clinician chooses the approach and settings according to skin tone, pigment depth and the risk of post-inflammatory darkening. Treatment may require staged sessions, and irritation or temporary colour changes can occur. Use gentle skincare and broad sun protection while the skin heals.

Book a review when pigmentation persists after stopping the suspected product, spreads, becomes tender or develops a different texture. Seek prompt care for blistering, marked swelling, severe pain or an open sore after any treatment. A changing pigmented spot also deserves examination rather than repeated cosmetic treatments.

Ask whether the diagnosis needs confirmation, which ingredients to avoid, whether your skin is suitable for laser treatment, how darkening after treatment will be managed, and what aftercare is expected.