Macrobid
"It has been my personal experience in dealing with urinary tract infection's that Macrobid is a godsend. After having my youngest child I came down with a UTI which stemmed from the birthing  unit nurse  improperly inserting a catheter prior to my cesarean section delivery. Within about a week I began noticing some tenderness in my lower pelvic area but thought perhaps it was because I had a tubal ligation and c- section and returned to work upon my discharge from the hospital (yeah not the most health wise move but childbirth doesn't stop the bills from flowing in). I was put on antibiotics that didn't work ended up admitted with severly infected kidneys and macrobid was the only thing that cured me and to this day is the only antibiotic that works for my UTI's"