When I had my IUD it seemed like I had every infection possible. Over the course of the year and a half that I had it, I had BV, urinary tract infections, yeast infections, a kidney infection, HPV, I can't remember more than maybe a few weeks that I was actually infection-free. As far as the itching, I most definitely had the itching. Sometimes it would be due to a flare up of a yeast infection and sometimes it would just come and go. I was also told about the probiotics. They are wonderful for you regardless of whether you have bacteria problems or not. I don't know if they prevent infection, but I think I had fewer infections once I started taking them.