Quoting Sarah Haines Whitely:" If you are not pregnant, I have heard that a nice cold beer will help clean out your bladder and urinary ... [snip!] ... thing you want to do after sex is get up and go pee and wash yourself, but I have mad it a habit and I haven't had a UTI since."
My SO is only home 4 days a month so we kinda do ''it'' whenever we can and after everytime i go to the bathroom. I got a uti when i was pregnant with my son but im not pregnant and the only thing i can think of is cranberry juice.