UTI :-/

I get chronic UTIs and sex I think is the root cause. That's when I usually get them. Can anyone give me any tips? I mean we are super clean. I feel weird about it bc I've gotten so many so I make sure we've both showered that day and washed our hands. I try to pee before but that's not always going to happen and I'll pee after. I tried taking silver daily I guess that didn't help. I've taken the AZO before and I'm thinking about getting back to taking those .... Any thoughts?