Help! Recurrent BV

So I have been having recurrent BV for a while now. I spoke with my obgyn and my regular physical doctor about and they both told me that it's not really a health issue and that it's more so uncomfortable to have the smell that occurs. They gave me an unlimited refill of the metrogel that I can request when ever I feel that I need it again. It's just very discouraging because I don't know what's wrong with me or what I'm doing that makes them come back so frequently. I probably notice a BV once every few months (maybe 5 or 6 a year) and I just think that's ridiculous. Does anyone have this issue? I really want to know something I can do more than just using this gel that only alleviates the issue temporarily.