What does picosecond laser treatment treat?

Very short laser pulses break pigment into smaller particles that the body can clear. A dermatologist may consider it for [Freckles](/conditions/freckles/), [Cafe-Au-Lait Spots](/conditions/cafe-au-lait-macules/), selected [Hyperpigmentation](/conditions/hyperpigmentation/), or [Melasma](/conditions/melasma/). The right settings depend on the pigment’s depth, cause, location, and your skin tone.

Dark patches can have different causes, and laser treatment may worsen or trigger pigment changes in some skin. Assessment is needed before treating an undiagnosed mark, especially one that changes in shape, colour, or symptoms.

Your clinician may recommend photographs, a test area, or a preparation plan before treating a larger region. Follow instructions about sun avoidance and skincare, and do not pick at temporary crusting or darkening after a session. Tell the clinic about recent tanning, active irritation, cold sores, medicines, and previous pigment changes.

Treatment may be combined with or preceded by other care when melasma or broader hyperpigmentation is involved. [Laser Toning](/treatments/laser-and-energy/laser-toning/) and [Hydroquinone Treatment](/treatments/medical-dermatology/topical-hydroquinone-therapy/) are examples your clinician may discuss.

Contact the treating clinic for severe pain, spreading redness, blistering, pus, or pigment changes that continue to worsen. Arrange a skin review for a new or changing dark mark rather than treating it cosmetically first.

Ask what type of pigment is present, whether a test spot is appropriate, how your skin tone affects settings, what aftercare is required, and how recurrence will be managed.