Traditional lice-treatment products primarily kill live lice only, so that means viable eggs are left behind. The recommended protocol is to apply the medication a second time after the remaining eggs have hatched, and before the new batch of head lice are mature enough to lay more eggs.
Unfortunately, it possible that even multiple treatments won’t kill all of the live lice. It is well known that many head lice are now resistant to the most popular over-the-counter lice products. The most recent study found that 98 percent of lice in 48 states carry a genetic resistance to pyrethroids, the class of pesticides used in most drugstore lice products.
Pyrethroids have also been linked to health problems, and many parents don’t realize that in applying traditional lice medications they are dousing their children’s hair with pesticides.
The good news is that newer and faster treatments are now available. Consider the revolutionary AirAllé medical device. Developed by researchers at the University of Utah, the device uses warm air to dehydrate lice and eggs, killing them all in a single treatment that takes about an hour. AirAllé has been cleared by the FDA and is clinically proven to kill live lice and more than 99 percent of eggs.
Treatment using AirAllé is available at Lice Clinics of America treatment centers—there are more than 300 of them in some 34 countries and our two clinics are the exclusive regional operators of the medical device. More than 350,000 cases of head lice have been treated using the device with a success rate better than 99 percent.