Can picosecond laser treatment help with dark patches on skin?

Dark patches can follow inflammation, sun exposure, hormonal changes, medicines, or an underlying skin condition. A picosecond laser delivers very short pulses of energy that can break up selected pigment particles for the body to clear. It is aimed at pigment, not at every reason skin becomes darker, so the expected benefit depends on the diagnosis and the depth and pattern of pigment.

Treatment can temporarily cause redness, swelling, sensitivity, or darker or lighter colour in the treated area. Skin with more melanin may be more prone to pigment changes after an energy treatment. A clinician should examine the patch and discuss whether laser is appropriate before any session.

Have new, changing, or unexplained dark patches assessed before booking a laser session. Tell the clinician about recent inflammation, tanning, pregnancy or hormonal treatment, medicines, previous procedures, and any history of easy pigment change. Ask whether a small test area is sensible and what result is realistic.

Use the recommended sun protection and do not scrub, pick, or apply irritating products to treated skin. Follow instructions about skincare and pause any product only when the clinician advises it. Several visits may be discussed, but the plan should be adjusted to your response rather than assumed in advance.

Seek a prompt skin assessment for a patch that is new and changing, has an irregular border or several colours, bleeds, crusts, becomes painful, or differs clearly from your other marks. After treatment, contact the clinic for increasing pain, blistering, spreading redness, pus, or a colour change that is worsening. Laser should not delay assessment of a suspicious lesion.

What is the likely cause and depth of this pigment? Could a non-laser treatment be safer? How might my skin tone respond? Would a test spot help? What sun protection and warning signs should I follow after treatment?