I'm 23, in a committed relationship, though a fairly new one. I was diagnosed with vulvar vestibulitis several years ago; since then it's been a parade of new symptoms and reactions to medications (like that time the yeast medication made the itching worse, that was awesome).
Right now, I've started using an estrogen+testosterone cream topically on the vulva, twice a day, and also went off oral birth control. At first there was lots of itching, and I used boric acid, which made it go away pretty quickly. Now I itch again, and my labia majora feel rather swollen. I took a look down there, and they appear more wrinkled and generally bumpy than usual. It doesn't look like there are any bumps sitting on the skin, though; the texture of the whole thing has changed a bit. The itchy, swollen areas are slightly pinker than the surrounding skin, and I have fairly heavy white discharge (although that's been nearly constant for the last two years).
What could be causing this?