my baby isn't going to be here for another couple mo., but I too have varicosities in my vulva and on my legs.
the things that have helped me have been:
vitamin E (400 iu additional to my prenatal in my 1st trimester, 200 iu additional in my second and now third, too much can cause retained placenta)
good support stockings. I hate things on my belly, so I was able to find some stockings that only come up to my thighs, but stay where they are put.
a v-support device. this was a gift (it was about $50, which I wasn't able to afford myself) and looks like, well, a jock strap. it isn't alot of fun to wear, but on days that I am aching in my vulva, it really is a helpful tool.
drinking water constantly and avoiding caffiene. even a small amount gives me problems.