Reoccurring infections

So around 4 months postpartum I noticed something was wrong down there and thought it was a uti. I went and got checked and they said it wasn’t but prescribed me the antibiotics for it anyway. Kept going back and forth until I went to my gynecologist and found out it was BV . I’ve had it once before years ago and got it treated and it went away. This time I don’t know why it keeps coming back but it is so frustrating. I don’t know what keeps triggering it but I noticed after a few times of having sex with my partner that’s when the symptoms would come back 😭 This is now like the 3rd time of getting the symptoms again. I was taking probiotics and antibiotics and that was the only thing that seemed to work to get rid of it but do any of you have any recommendations or have similar experiences? Besides that, I’m not too sure what could be causing it but I’m just tired of dealing with it. I did abstain from sex the last time I was treating it and will have to do the same now.