Boric suppositories  (also called boriseptic suppositories) are often prescribed as an alternative treatment for certain types of vaginal infections that are resistant to standard treatment. They can also be used as a preventative treatment for women who have chronic and recurrent yeast infections or bacterial vaginosis, says Kecia Gaither, MD, an ob-gyn in New York City.

What are boric acid suppositories?

Boric acid is a type of acid that helps maintain a healthy pH level in the body. It can be formulated as a liquid or in an oval-shaped capsule, which is inserted into the vagina and becomes a solid as it warms up to the body’s temperature.

The Benefits and Risks of Using Boric Acid Suppositories for Vaginal Health

To use boric acid suppositories, remove the capsule from its packaging. Gently insert the suppository into the vagina, as far as it will comfortably go. Leakage is likely to occur, so use a sanitary pad or liner to absorb it.

Side effects of boric acid suppositories may include itching, burning, or irritation of the vaginal area. If these symptoms are severe, you should stop using the suppositories and talk to your doctor.

Other possible side effects of boric acid suppositories include hives, difficulty breathing, swelling of the face, lips, tongue, or throat, and symptoms that come back after the suppository is removed. Call your doctor right away if any of these happen.

Avoid using boric acid suppositories if you have open wounds, sores, or ulcers in your vaginal area. This is because boric acid can be toxic when ingested or applied to an open wound.