Boric acid, the same thing we use to kill cockroaches, is also an effective treatment for bacterial vaginosis (BV). Boric acid suppositories are made in gelatin capsules that you insert into your vagina. They are similar to miconazole (antifungal) creams and suppositories you might get over-the-counter or from your doctor.
Boric acid for bacterial vaginosis is not a first-line treatment, but it can help improve cure rates when used in conjunction with antibiotic therapy. It is also a preventive treatment for women who have a history of chronic or recurrent BV and yeast infections.
Using boric acid for BV should be avoided during pregnancy as it can be toxic to the fetus if swallowed. It is also not recommended for women who have had surgery.
It can help restore the balance of good bacteria in your vagina, which can reduce the chance that a yeast infection or BV will return. Several foods and supplements contain live bacteria that can help, including yogurt and probiotics.
Boric acid is a natural antifungal that maintains the health of your vaginal pH. When it is inserted into your vagina, it can remove the excess mucus that helps to create an environment in which bacteria can thrive and grow.
When used in combination with antibiotics, it can improve the cure rate of BV and yeast infections by reducing the amount of bacteria that remain. A 2021 study found that adding 600 mg of boric acid to a course of metronidazole improved the cure rate in women with BV by 50 percent.