She is on day 2 of Bactrim antibiotics. Grandma is 88yrs.old and has dementia.I took her to see urgent care doctor on Thursday and started her on antibiotics. She is now drinking a glass of water every hour and will start her on cranberry juice today.But last night she started bleeding in her pee.She pees every 15 to 20 minutes. She wears adult briefs every day.She doesn't feel pain.And she doesn't remember she has a bladder infection.She also hates to drink water or anything but coffee. What should I do?