Hi and welcome!
To answer your question: skin whitening or hydroquinone products will not work for any type of vascular birthmark. They work on the top layers of skin and to lighten a vascular birthmark, you have to get to the veins and blood vessels underneath. Don't waste cash on that.
Write to Dr. Nelson, though, via http://birthmark.org/experts.php
and ask him specifically about what might work for people of asian descent. I know there have been developments in laser technology and perhaps there is something out there for you.