You should be drinking about 2.5 liters of water in a day to keep your body hydrated enough and flush out any toxins from the body. Drinking plenty of water every day can aid in getting rid of BV. Though it depends on many other factors, you can use this remedy to help get rid of it if your BV has just started. You'll be peeing very often, and that's helpful in flushing out the toxins. Also, wear breathable cotton underwear to help get rid of BV.