J.O.
With my kids I have told that nurses and teachers at school can help them too. HOwever no one she ever touch them where their bathing suits cover them unless they are in the potty room and need help wiping or in the doctors office> Just remind that that those are her privates and she should keep them private it bring up in every day conversation over and over again . Gentle reminders are all it takes to keep the kids safe. I would also help her less in the bathroom but tell more specifically how to wipe better. Good Luck.
J.