Did you know that you’re absolutely, positively, not allowed to use Q-tips to clean your ears? Not only that, but you’re not even supposed to clean your ears at all. From Roberto A. Ferdman more-fascinating-than-it-should-be The strange life of Q-tips, the most bizarre thing people buy:

“People have been led to think that it’s normal to clean their ears — they think that ear wax is dirty, that it’s gross or unnecessary,” [Dennis Fitzgerald, an otolaryngologist in Washington, D.C.] said. “But that’s not true at all.”

Fitzgerald likens ear wax to tears, which help lubricate and protect our eyeballs. Wax, he says, does something similar for the ear canal, where the skin is thin and fragile and highly susceptible to infection.

“Your body produces it [ear wax] to protect the ear canal,” Fitzgerald said. “What you’re taking out is supposed to be in there. There’s a natural migration that carries the wax out when left alone.”

Even if our ears were meant to be cleaned, the truth is that Q-tips would still be a terrible thing to use, he says. The shape, size, and texture of cotton swabs is such that inserting them into your ears tends to push wax inward, toward your ear drum, rather than woo it out.

The article explains a true marvel of product design: perhaps the only “major consumer product whose main purpose is precisely the one the manufacturer explicitly warns against.” It’s so interesting how it took the manufacturer decades to start warning against this behavior on the packaging.