1. For vaginal health — its main medical use:
- Used as vaginal suppositories (600mg) for recurrent yeast infections and bacterial vaginosis when normal treatment doesn't work
- Helps restore normal vaginal pH (acidic), making it harder for yeast and bad bacteria to grow
- Doctors sometimes recommend it after antibiotics or for resistant infections
2. As an antiseptic:
- Very diluted boric acid water was traditionally used as an eye wash and for minor cuts, but modern eye doctors mostly use safer products now.
3. For skin:
Low-concentration powder/solution is used in some powders for athlete's foot, to reduce odor and fungus, because it inhibits fungal growth.