What helped you when you had recurring bacterial vaginosis?

I have been having recurring bacterial vaginosis since my son was born on July 14th 2017. Bacterial vaginosis comes back after treatment. I have been to my obgyn doctor recently for pap smear and I have told my doctor about my recurring bacterial vaginosis but he seem like it was normal since he sees it a lot in his clinic.

I been told by my medical doctor to take Queen v probiotics or azo probiotics plus wash with queen v cleansing bar.

I do use unscented soap, laundry detergent and so on. I heard seman causes bacterial vaginosis, but my husband and I don't have sex very much,but we are wanting another baby,but doesn't know what to do about bacterial vaginosis. It may not be safe at conceiving!