You can buy boric acid suppositories online or over-the-counter at your local pharmacy for anywhere from $15–$30. Even so, it's still a good idea to talk to your doctor before using boric acid ...

Boric acid vaginal suppositories can be useful for some people when it comes to addressing those uncomfortable symptoms, like intense itching and irritation, associated with the conditions above.

The weakly acidity of boric acid improves the interfacial stability of ITO and PSC device. Photo credit: Huanxin Guo and Prof. Yongzhen Wu. view more . Credit: ©Science China Press.

Boric acid (yes, the same stuff we use to kill cockroaches) can help to maintain a healthy vaginal pH for those struggling with chronic or recurrent yeast or bacterial infections, says Dr. Dweck.