Treats acne
Boric acid is an inexpensive and effective way to treat acne. It works by killing the bacteria that cause acne and by reducing inflammation. It is available over the counter in many drug stores.
To use boric acid for acne, mix one tablespoon of boric acid with two tablespoons of water. Apply the mixture to the affected area using a cotton ball or Q-tip. Leave it on for 10 minutes, then rinse it off with warm water. You can do this once or twice a day.