It’s pretty hard! Or at least killing them is easy, not getting infected again immediately isn’t so easy. Drugs are effective against the worms, but not the eg

It’s pretty hard! Or at least killing them is easy, not getting infected again immediately isn’t so easy. Drugs are effective against the worms, but not the eggs. So you have to deworm once, wait for the eggs to hatch, then deworm again 2 weeks later. The eggs are small enough to blow around in the wind. And will be all over the bedding and kids clothes if they’re infected (and probably their school environment). So the chances of reinfection, and family wide infection are high.