Can You Kill Lice with a Hair Dryer?
Lice are small, parasitic insects that feed on human blood. They are most commonly found in the scalp and hair, but can also live in any part of the body with hair. Although lice infestations can be uncomfortable and itchy, they can be easily treated with over-the-counter medications. But can a hair dryer be used to get rid of lice?
The Short Answer
The short answer is no, a hair dryer cannot kill lice or their eggs, called nits. Heat exposure from a hair dryer is not strong enough to kill lice or their eggs, and in fact may make them more resistant to treatments.
The Long Answer
Lice eggs must be heated to a temperature of at least 118°F (47.8°C) for at least 10 minutes in order to be killed. A hair dryer does not generate enough heat to reach this temperature and it is not possible to focus the heat from a hair dryer onto the eggs for the required amount of time.
The heat from a hair dryer is also not strong enough to kill adult lice. While the heat may cause some discomfort to the lice, it will not kill them.
Other Ways to Kill Lice
The best way to get rid of lice is to use a medicated shampoo or lotion, available at most drugstores. These shampoos and lotions contain chemicals that kill lice and their eggs. It is important to follow the directions on the package carefully for the best results.
In some cases, lice may be resistant to over-the-counter treatments. In this case, a doctor may prescribe a stronger medication.
Preventing Lice
The best way to prevent lice is to avoid contact with anyone who has lice or their eggs. It is also important to avoid sharing items such as hats, combs, brushes, and other hair accessories with someone who has lice.