I have had 6 uti , in the past year. all ecoli. 6boutsof iv antibiotics, and it still keeps comming back almost every month. ?

See below: I assume you have had a renal ultrasound and your post-void urine residual measured. If these are normal try prophylaxtic antibiotics. Trimethoprim/sulfa (septra/bactrim), norfloxacin, and Nitrofurantoin (macrobid) given in low dose each night before bed are the usual antibiotics used for frequently recurrent uti's. I do not prescribe Nitrofurantoin because of its potentially serious toxicities.