It sounds like you are already doing a lot for the infection. They are NO fun!
I agree with Wiseone...probiotics are very helpful as they help re-populate the flora in our body so the one's that aren't so beneficial can't take root. Unsweetened whole yogurt is a good source (and I HAVE broken down and gotten capsules at times). (BTW, according to many sources there is no connection between vaginal candida and overgrowth of candida anywhere else in the body.)
I've also worked with a Pau D'Arco, Echinachea, Tea Tree douche before...which when done very regularily 3x per day worked well (with a garlic clove in between to help with symptoms). I'm trying to work with more local herbs now.
Some herbs that I've worked with that can be helpful include (though debates or not enough information with them regarding pregnancy)
* Maitake Mushroom
I also like what Susun Weed says about it...
"The world is filled with life, my daughter, and some of that life can distress you. Your vagina is filled with life, dearest granddaughter, and some of that life can distress you, too.
"When you are too sweet, life can run over you. Stay a little on the sour side, wise sister; it is to your benefit. Bacteria, funguses, and parasites like it when you always say 'yes,' when you always agree; they thrive on your sweet acquiescence. When you put your needs aside and let others have their way, the life in your vagina magnifies your decision.
"What you term an 'infection' is a reminder to pay attention to yourself, to take some time-out from your responsibilities, and to recreate safety in your life."http://www.exploringwomanhood.com/mindbodysoul/health/vaginal-yeast.htm
Good luck! and let us know what works for you.