we used it as an eye wash to kill eye infections ..”sty ” one level teaspoon Boric Acid in a 6 ounce cup of boiled water ..let it cool …bath eye area or use a steril dropper
I prepared it when I was 6 years old and still use it …back then I dipped a cotton ball in it and swabbed it around the eye making sure some got in the eye.
You will notive Boric Acid is still used in commercial eye washes …it costs about a penny to make or $5.00 to buy ..