[Pearls Before Swine]

I had no idea boric acid was that dangerous. When I was a kid, we always had some around to make eyewash if you had an eye-stye.

[Twinkie]

Uh. NO! If you get an eye infection, take a strip of aloe
vera plant, put the aloe juice in a sterilized eye dropper,
drop a few drops in the eye (2 or 3 drops). Soothing and
healing. Doesn’t take much.

[daniel1212]

I had no idea boric acid was that dangerous. When I was a kid, we always had some around to make eyewash if you had an eye-stye.

Boric acid is often used as an insecticide and can be very effective at controlling cockroaches, as well as small ants. However, in humans, boric acid is only slightly more toxic than table salt.

So, how is boric acid able to kill cockroaches, when it is only slightly more toxic than table salt?

The short answer is that boric acid affects the body of an insect much differently than it does a human or other mammal.

This does not mean that boric acid is safe for humans or animals to consume though, but only that it takes less boric acid to kill insects.

When considering the comparison of boric acid to table salt, it is important to remember that many of the things we regularily eat are actually toxic if consumed in excess. For example, caffeine is almost 14 times more toxic to humans than boric acid. - https://dengarden.com/pest-control/boric-acid-toxicity-table-sale-insecticide-sugar

But i think the EPA would like to require one to be a licensed PCO to use it.