I just got home....
My thrush is gone after having used the Culturelle for the last 10 days or so. I didn't even use it so regularly, but it seems to have done the trick. I mean, the thrush is gone but I still get a strange taste in my mouth and am afraid to have anything too spicy.
I've also been sampling all kinds of food, and don't know how to continue right now. I'm going to eat on the "conservative" side, i.e., keep the wheat and starches to a minimum for a while.
I was able to get some tea tree oil toothpaste and mouthwash in the US. I'll start using the mouthwash today. The label claims to produce good results in 2 weeks of using the product. There is goldenseal and GSE in the mouthwash as well.