Hi jessieywl, my baby has port wine stain as well, my baby was born in London and I was told there that it's best to start the treatment when he's 6-8 months, he's 7 months now and he's first treatment is in March. I've heard recently that they do this treatment in HK and I was wondering if and where your baby had it done.....I much prefer him to be treated here as we don't need to fly back and forth which can get be abit too much for a baby! Thanks