Yeast infection

This is embarrassing to even ask. But I am 10 weeks pregnant and have a yeast infection I've tried everything at home I can think of that's safe while pregnant and it's not helping. I've read that using plain Greek yogurt down there will help, but I've also seen articles that say not to do it. This is my last option before calling my OB, which I would rather not take medicine if I don't have to. Can you use yogurt for that?