If have a uti what antibiotic should i take?

Antibiotic: To be sure of which antibiotic (A) to take, you need to have your urine cultured. This will tell you the bacterium that is causing your UTI and antibiotics can effectively treat it.You can start a broad spectrum A at first and if the bacterium is resistant to it, it can be switched to one that is effective in treating it. Good luck.