3 days later symptoms were worse. I dont know what to think. Urinary Tract Infection Some studies have “proven that ciprofloxacin at a dosage of 100 mg bid for 3 days was the minimum effective dose for the treatment of uncomplicated urinary tract infection in women.” while numerous other studies “shows that a single dose of ciprofloxacin is an effective and safe treatment of uncomplicated uti. Can 3 days of cipro cure uti . 200 to 400 mg iv every 8 to 12 hours for 7 to 14 days oral: 500 mg orally every 24 hours for 3 days You should start feeling better within two days, but don't stop taking those antibiotics. Because i know the acid in the urine, if it runs on a sore will cause it to burn, but if a typical out break last up to a week or two and the cipro clears the uti or feeling in three days is there any linkage??? Once your uti is officially diagnosed, your healthcare provider will prescribe a course of oral antibiotics to kill the bacteria causing your uti. You ma...