E.M.
She should go to the doctor. I had a string of bladder infections when I was younger that led to a very serious kidney infection. It's just a pee test to diagnose, no big deal, but she will need antibiotics. Cranberry juice is a PREVENTIVE measure, as Liv B. said. It DOES NOT treat a bladder intfection. Drinking lots of fluid will make her feel better, but the bacteria are still hanging out in there waiting to cause problems. I would take her in to urgent care rather than wait for the infection to get worse. If you are prone to bladder infections, you know that the symptoms can get exponentially worse in just 24 hours.