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  1. Toronto Public Health
  2. Canadian Paediatric Society (Infectious Diseases and Immunization Committee). Head lice infestations: A clinical update. Paediatrics & Child Health 2004;9(9):647-651.
  3. Lice…Lice…Lice…all there is to know about head lice. Ministry of Health and Social Services of Quebec. ISBN 2-550-36691-3. July 2003.
  4. RESULTZ® consumer product insert. Nycomed Canada Inc.
  5. MedlinePlus

FAQ

Here, we provide answers to common questions about managing head lice:

What immediate steps should I take at time of diagnosis?

Public health experts suggest that your first practical step is to inform close family and friends of the presence of head lice and check for live louse infestation in all those concerned. Next, talk to your pharmacist, consider an over-the-counter topical treatment and follow-though with the required secondary application for best success.

Is it necessary to use a nit comb?

The most effective treatment regimens involve a topical treatment application followed by combing with a specialized nit comb.

Why would a topical treatment be needed more than once?

There can be nits left behind that are not killed after the first treatment. These eggs may hatch and will need to be eliminated with a second treatment.

What should I do if we complete a treatment regimen carefully and are not successful in eliminating the lice?

Re-occurrence of head lice after a complete treatment regimen may be due to some imprecise treatment application or re-infestation by an untreated person.

Product failure due to a built up resistance in the lice population to a particular treatment drug could also be at issue. Resistance is defined as the capacity to survive exposure to a drug that was formerly effective, due to genetic mutation. Always seek the advice of health care professionals in such cases to determine the best treatment choice for your family.