Our House
advice


FAQ - Head Lice

Summary: Parents should spend time nit picking rather than treating the whole house for lice. Also, we do not advocate "no -nit" policies for schools.

Jack DeAngelis, PhD
OSU Ext. Entomologist (ret.)

The following questions about head lice come from parents and teachers. Please see the main articles about head lice and head lice control for additional information.

Q: My child has head lice and my time is limited. Is it more important to pick nits or treat the house for head lice?

A: Your time is best used removing nits by proper combing with a metal nit comb. Lice die quickly if moved away from the head so cleaning the house or bedding has little positive effect on lice control. Clean bedding, bed clothes, hats, etc. as the last step in your control program.

Q: What is a "no-nit policy" and are these policies effective?

A: Many schools prevent students from entering the building if they exhibit signs of a head lice infestation. The sign most often used is the presence of nits, or eggs, in hair. If nits are found, or just suspected, the whole school may be subjected to inspection. Students that are believed to have nits are excluded from class and sent home for treatment.

Are these policies warranted? No. We do not advocate these policies because they unnecessarily stigmatize students and result in lost school days.

We have two main concerns. First, it is very difficult to distinguish live nits from dead nits that remain attached to hair long after lice have hatched (for an explaination see our lice nits article). It is difficult to tell when the child is "lice-free". Second, nits can easily be confused with other hair debris so many "false positives" are possible which leads to over treatment. We believe a better approach is to educate parents and teachers about proper lice identification and control so that infestations can be effectively managed when they occur.

If our information is useful, please click here to help maintain and grow 'Bugs!

Mission: To provide accurate, up-to-date and unbiased information for solving common insect and mite problems around your home, business and landscape using least-toxic methods.

Jack DeAngelis, Ph.D.

Please see the Disclaimer statements as well.


Copyright 2004-2008 LivingWithBugs, LLC. All Rights Reserved. Page Updated: 6/29/2008