I have been suffering from kidney infections for the past three years. This episodes occur every three months. The doctors doesn't know what cause it. I have been in three different types of antibiotics. The first was Cipro, it did work for a couple of months but then stop working. The second one they try was Bactrim Septra it didn't do anything. During my last infection they gave me Levaquinn through IV & tablets and it work like a charm. In few occasions they gave me Rocephin shots & it works. If you interested in my condition you can read my message titled "constant kidney Pain" it's my story with kidney infections. Well i hope you feel better, hope the Cipro works for you. keep me posted.