If you have UTI's more often, you shouldn't always rely on antibiotics. The bacteria will build up a resistance and the illness be difficult to treat if you get it again
That's why, before treating it with antibiotics, I suggest you simply drink loads of water and cranberry juice. You could also take cranberry pills, which are more concentrated but the most important thing is to drink a lot and don't hold back when you have to pee.
You should lessen pain by applying warmth to your lower abdomen.