I posted this in another thread:
Strep B Douche (vaginal irrigation)
One part 3% Hydrogen Peroxide to four parts water (Hydrogen peroxide kills Strep B on contact, however, NEVER treat with undiluted Hydrogen Peroxide-too strong!))
Douche or irrigate once a day, every other day, for six days (a total of three treatments).
Also clean labia with same solution twice daily for all six days.
Optional additions to solution above:
3-4 drops of Tea Tree essential oil
30 drops of Barberry tincture
Though I didn't actually douche with it... I just squirted the area very thoroughly.