Did you take probiotics after the antibiotic regime to replace the flora that the antibiotics removed? If not, you need to do so and I've heard you need 9 months worth. I just finished antibiotics for an infection and I am doubling my usual probiotic supplement plus eating a lot of yogurt.
Definitely take probiotics (good bacteria). You will probably take more antibiotics to get rid of the UTI, but to keep it form coming back make sure you take cranberry pills, such as AZO. Do not load up on cranberry juice since the juice has sugar in it. You can also drink sea salt mixed with water to relieve UTI symptoms.