dd1 just asked for cream on her vagina cause it was sore. she had just been to the toilet. when i put the cream on her vagina was really red. along the lenght of the labia more than anything. she is fully toilet trained (wears a nappy to bed which was actually dry this morning when she woke up). so it cant be nappy rash. do UTI cause redness? should i just persist with the sudocream or do you think see a doctor?