If you have a child in school, chances are she will get head lice at some point or another. You can be the most vigilant hair-washer on the planet, your kid’s head could practically sparkle, but one day you’ll look over and she’ll be scratchy-scratching at her scalp. My daughter had it first. Now, this is not entirely surprising. Despite the tightness of my braiding, the firmness of my pony tailing and the sternness with which I lectured that she’d get lice if she didn’t keep her hair back, she always came home from school with it loose.