Hi Dr. Lam,
I had a pulsed dye laser treatment about 3 weeks ago, and bruising at some areas still has not subsided. Is that normal? I was told that bruising should disappear within 1 - 2 weeks. so I am getting a little worried.
Also, for the treatment of hypertrophic scars, how far apart should the pulsed dye laser sessions be scheduled? Should I wait until ALL bruising is gone before the next treatment? And how likely is it for PDL to cause permanent skin pigmentation?