I hope you don't take offense by this, but when I read this thread I was so happy for you! At least, if you know you have thrush, you can just focus on kicking it's butt and hopefully no more pain, right? A known enemy is better than an unknown one.
But realistically, thrust sucks! I had it and was totally overwhelmed with all the instructions that I read (from Jack Newman, my ND, and Kellymom). Here's what worked for me:
-first, it helped me to get it in perspective when my ND said that we all have yeasties living on us all the time. It's not about getting rid of them 100%, just about getting back balance. For me, that just helped me feel less overwhelmed.
-I started taking Udo's Choice probiotics 3x per day and also giving the infant powder to DS. I would get my finger wet, dip it in the powder, and wipe it on his tongue. He actually seemed to like it.
-I did the gentian violet thing too. The stuff I got was 2% and Jack Newman says to use .5%, so I got another empty bottle and diluted it. Each morning and night I would swab some on my nipples and areola (it looks CRAZY!) and let it dry. Then I'd use a disposable breast pad and only wore shirts I didn't care about, because it stains everything it touches. I found that if I nursed DS right away it was just a purple nightmare all over his face, my clothes, his clothes, etc. I was much more successful just dipping a q-tip in the GV and rubbing it on his gums/tongue. Way less mess. I think you are only supposed to do this for 5-7 days.
-I also used a vinegar solution on my nipples multiple times a day. I think it was Becky who suggested having a spray bottle in the bathroom and spraying it on the nips to wipe off... it was genius!
-I wanted to get Jack Newman's APNO, but none of my care providers would get me a prescription for it, so I just used a nipple cream that had antifungal properties (it's a local brand).
-DS didnt' have any on his bum, so we didnt' have to worry about that.
So, I guess I didnt' really answer your question. I didn't change my diet too much because it was the first 2 weeks PP and I was just happy to get any food in my mouth, let alone have a special diet. But I purposely declined super sweet stuff.
Good luck, I hope that you kick the thrush quickly and have healthy non-painful boobies!