What you are describing is post-inflammatory hyperpigmentation (PIH) or a 'laser bruise' – specifically, it's called a 'purpuric' reaction. Pulsed dye lasers often cause these tiny purple dots (petechiae) because they burst the blood vessels. This is actually a *good* sign – it means the laser successfully targeted the blood supply. These purple spots look scary, but they are not scars. They will fade. Typically, they turn brown, then light brown, then disappear completely. The timeline: 1-2 weeks to turn from purple to brown, 2-4 weeks to fade to light pink, 4-8 weeks to return to normal skin color. If you have darker skin, it might take 3-6 months. You can speed it up by: keeping it moisturized, avoiding sun (sunscreen SPF 50), and using a vitamin C serum or silicone gel. Do not pick at it. Do not bleach it. Be patient.