N.L.
I bet I know I what this is, and it's not a yeast infection. I think it's Bacterial Vaginosis. Does her vagina smell fishy? It is caused by some poo getting into the vagina, which makes since, since she is potty training. It causes an infection. It's the main reason why us girls are supposed to wipe front to back. She has to go to the doctor and get on antibiotics.