Incurable Bacterial Vaginosis

Has anyone else suffered from chronic BV? I have tried metronidazole gel suppositories on 3 different occasions and boric acid as well and no luck. I don’t know what could possible help. At home I’m trying oil of oregano and a probiotic as well. I have changed ALL my habits at home. No baths, showering immediately after sweating, cotton underwear, non latex condoms, water based lube, natural soaps and detergents, etc. I’m starting to feel hopeless. My biggest indicator that things aren’t right is the fact that as soon as I attempt intercourse I feel a burning/ friction feeling.

Please let me know your insight!