What should you know about laser therapy for port wine stains?

A port wine stain is a capillary malformation made of widened small blood vessels in the skin. A vascular laser sends light into those vessels, where it becomes heat and encourages them to close or shrink while limiting injury to nearby tissue. The stain may look darker, swollen, bruised, or crusted for a period after treatment. Colour and thickness vary across one stain, so different areas may respond at different speeds.

The face, eyelids, lips, and other sensitive sites need careful assessment. A specialist will consider the person’s age, skin tone, medical history, treatment area, and whether the mark has changed in texture or thickness.

Choose a clinician experienced with vascular laser treatment and ask how the skin will be protected during the session. Discuss sun exposure, medicines that affect bleeding or healing, cold sores, previous scars, and any anaesthetic plan. Follow the clinic’s cleansing and dressing instructions afterward. Keep crusts intact, avoid picking, and protect healing skin from sunlight. The clinician may arrange more than one session because vessels at different depths may need separate treatment.

Contact the treating team if pain or swelling is severe or worsening, the area becomes increasingly hot or red, or you see pus, spreading blisters, or fever. Arrange a medical review for a port wine stain that develops a new lump, ulcer, bleeding, or rapid textural change, especially before another cosmetic session.

Is this definitely a port wine stain? Which vascular laser is appropriate? What temporary skin changes should I expect? How will my skin tone affect settings and aftercare? What signs would mean I should contact the clinic?