Good evening Dr. I require your kind advice regarding my mom's medication. You see, my mom had persistent uti & severe e-coli infection last year for which she was prescribed nitrofurantoin 100 mg for 1 year which would completely eliminate her uti & e-coli. My mom however had for only 5 months & quit. It's been 4 months now since she quit, & now suddenly she's experiencing frequent urination, overactive bladder and urine incontinence every other week which continues for 2-3 days. Also there is inflammation during urination. Kindly suggest if there is no harm if she starts nitrofurantoin 100 mg again? And so for how long i.e. Remaining 7 months or any other period?