Urinary Tract Problems

So, I began getting major UTI's a couple years ago. I was treated with antibiotics probably 5 times a year until I decided that they were not working like they should. I guess my body was not accepting the medication like it should. Anyway, I found out about Demanose which is a natural powder that helps flush out bacteria and get rid of infection. I take it every day. If I don't, I will get a raging infection. I know it's safe for continuous use but I can't help to think that I shouldn't need it just to keep UTI's from occuring. I am healthy, drink TONS of water, urinate after sex, etc., etc. Has anyone else had this problem? I'm considering going to the urologist about it. I have talked to my regular doctor about it and even if I feel the infection coming on, my urine test comes back clean since taking Demanose. I have also had pain near my right ovary for a year now. Tests, ultrasounds, and scans have shown no issues. I'm wondering if it could be related. Let me know if you have any information about these symptoms. Thanks!