my vagina stings when i pee. It has been itching all night and then, when i went to pee, it burned.. badly. like the worst pain i've ever felt. it's also red down there. i shaved down there earlier, so i'm not sure if i nicked something? there was also a tiny bit of white puffy stuff. My mom said it might be a yeast infection, but if it is i can't see my doctor or get medicine unti tomorrow night. I definitely can't go the whole day like this. What can I do to lessen/relieve the pain?