dd age 3 is complaining that her vagina is sore, she was fine before bed, no complaints at all, then all of a sudden she was crying saying it hurt (she had been playing in her room as she always does before she climbs into bed)i put some sudocrem on then she went to sleep, she woke up an hour later which is unusual for her crying and saying it hurts, again i put cream on had a quick look everything looked fine, shes just woke up again so this time i brought her downstairs and had a good look everything looks fine although the entrance looks a little red, i looked the best i could to make sure she hadnt put something up there and it doesnt appear that she has but thats deffo the part that is hurting her so ive put vaseline on the area, she seems fine in herself and she is weeing ok. what do i dooooooo?