I think she might have a yeast infection going on. She says its hot when she pees, the area looks a bit inflamed and...well, tmi but there's a slight odor.
I treat my own infection with cloves of garlic but I can't do that with a toddler. How did you treat your kid's infections?
She wore tights Saturday and yesterday. Could that have caused this? She hasn't been on antibiotics or anything.