Well, I've had spider veins on my legs (specifically upper theighs) since I was 16. I am now 20 and they only continue to get worse. It's starting to get to the point where I'm embarrassed to wear shorts, which is aweful considering summer is here and it's just too hot to wear jeans!!!
I've looked a little bit into laser type surgeries. However, the problem is, insurance won't cover it and being a full time student, I just don't have the money to spend on this type of surgery.
I have heard of people having some success with vitamin K cream to lighten there spider veins but I haven't tried it. I have had some success with Emu oil to lighten mine but it really isn't a big difference, sadly.
The only thing I can think of is maybe wear stockings, body makeup or tanning to cover them up. Sorry, I'm not much help.