Chlorine can't kill head lice. The Centers for Disease Control and Prevention (CDC) also report that swimming in a chlorinated pool won't kill lice. Not only are lice able to survive pool water, but they also firmly grip human hair when a person goes under water.

What kills head lice instantly?

Smothering agents: There are several common home products that may kill lice by depriving them of air and smothering them. These products include petroleum jelly (Vaseline), olive oil, butter, or mayonnaise. Any of these products may be applied to the scalp and hair, covered with a shower cap, and left on overnight.

Can lice survive in swimming pools?

Truth: Lice are very resilient and can survive chlorine.

“Data show that head lice can survive under water for several hours but are unlikely to be spread by the water in a swimming pool,” says the CDC. “Head lice have been seen to hold tightly to human hair and not let go when submerged underwater.