Mar. 23 -- WEDNESDAY, March 21 (HealthDay News) -- Laser treatment of port-wine stains can lighten these disfiguring facial blemishes, but its effect may not be permanent, new research suggests.

Study's authors Port-wine stains occur in about 0.3 per cent of newborns. Since 1989, pulsed-dye laser has become the standard way to treat port-wine stains, but there has been little long-term ...