I am suffering from chronic vaginal infections

i am suffering from chronic vaginal infections my symptoms being itching, swollen vagina, discharge with fishy smell and it effects are more when i have sex at the time of ovulation and also my symptoms are high begore to my periods. i have showed to a dozen gynics all said its simple and normal problem but none of them helped with their medicines and antibiotics.I got all the tests like vaginal swaps, throyid  etc tests done my paps smear test is also negative with just inflammtion present in my cervix.i tried baking soda slitz bath it dint give me anyrelief. i recetnly read about the book bacterial vagnosis written by kristein and also her simple 3 steps which helps in eradicating this infection. but i have got my vaginal swaps done and their are normal flora present which means all fine. so can i go ahead and try these steps as she clearly about steps for BV.plsss advice did anybody followed her steps and got rid of this disease permanently. ur suggetions are valuable to me. thanks