Lice: An Embarrassing and Annoying Parasite - CHES01

Lice: An Embarrassing and Annoying Parasite

by Danielle Alm, PharmD, BCPS
(4.5 / 55 ratings )

This course is credentialed for:
Health Education (1.00 CECH)

Price: $20.00
CE-PRO Price: $10.00


Lice are ectoparasitic insects to humans that are 1 to 3 mm in length (less for pubic lice), cannot fly or jump, require close contact for transmission, and need a human host to survive. Three different types exist: head louse (Pediculus humanus capitis), crab or pubic louse (Pthirus pubis), and body louse (Pediculus humanus corporis). Head lice, the most common of the three types, are found across all socioeconomic classes worldwide. Transmission of head lice is via close contact, head-to-head contact, or inanimate objects like combs or brushes. The resistance of lice to medications continues to be a growing problem worldwide. Many different medication options are available for eradication of head lice. Essential oils are also potential pediculicidal agents, and many countries have over-the-counter products containing them.


The goal of this program is to give healthcare providers information on biology, epidemiology, pathophysiology, diagnosing criteria, resistance patterns, infection prevention methods, and treatment strategies to effectively manage a lice infestation. After studying the material presented here, you should be able to:
  • Discuss the three difference lice types and their biology, epidemiology, and pathophysiology.
  • Describe diagnosing criteria, resistance, and prevention and treatment strategies for lice infestation.
  • Identify the various medication options for effective lice eradication, including use of essential oils.

Approval Information
This course is intended for multiple professions, including pharmacists, pharmacy technicians, and health educators.
Health educators: Take this version of the course to ensure you receive appropriate credit. 
For the version accredited or approved for another profession, go to your specific profession at If you have a CE Direct login ID and password (generally provided by your employer), please log in as you normally would at and search for this topic title.
Sponsored by Relias LLC, a designated provider of continuing education contact hours (CECH) in health education by the National Commission for Health Education Credentialing, Inc. This program is designated for Certified Health Education Specialists (CHES) and/or Master Certified Health Education Specialists (MCHES) to receive up to 1.0 total Category I continuing education contact hours.
Provider ID: CA0084 (98709) for 01/01/2012 to 12/31/2015, 114941 for 01/01/2016 to 12/31/2019, 1133776 for 01/01/2020 to 12/31/2023.

Course Originally Released on: 4/10/2012
Date of Most Recent Review: 6/26/2019
Course Termination/Update Date: 6/26/2022

Unless stated above, the planners and authors of this course have declared no relevant conflicts of interest that relate to this educational activity. Relias LLC guarantees this educational activity is free from bias.

Please see CE Course Instructions to learn how to earn CE credit for this module.

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Sharon M - Tolleson, AZ  ·  Feb 27, 2019
This was a great course!
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walaa i - al dhaid, IT  ·  Jan 28, 2019
it is realy nice, benificial,provided with details, but i hope if there are some supportive photos
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GABRIELA E - san antonio, TX  ·  Oct 31, 2018
the information was very informative on procedures of handling medications and getting rid of lice in the many stages
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ARNOLD P - Grandview , MO  ·  Sep 11, 2018
Gives a lot of info on how to handle lice
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Traci B - Broomfield, CO  ·  Aug 08, 2018
The course was very enlightening.
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Price: $20.00
CE-PRO Price: $10.00