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What are Head Lice?. Insects that live and reproduce on your headHead lice feed on blood from your scalpHead lice are a common nuisance, but are not considered a health hazard. Who can get Head Lice?. Anyone who has close head-to-head contact with someone who has head liceMore common among presch
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1. Head Lice A Nit-Pickin’ Nuisance
2. What are Head Lice? Insects that live and reproduce on your head
Head lice feed on blood from your scalp
Head lice are a common nuisance, but are not considered a health hazard Life cycle:
- Egg is laid on hair shaft, close to scalp. Egg is called a 'nit'.
- (nymph) Louse emerges after 6-7 days.
- Adult lice live for 20 days, and the female can lay between 50-150 eggs.
Life cycle:
- Egg is laid on hair shaft, close to scalp. Egg is called a 'nit'.
- (nymph) Louse emerges after 6-7 days.
- Adult lice live for 20 days, and the female can lay between 50-150 eggs.
3. Who can get Head Lice? Anyone who has close head-to-head contact with someone who has head lice
More common among preschool & elementary school-aged children & their families
Personal hygiene or cleanliness in home or school has nothing to do with getting head lice
Head lice cannot live on pets or animals, only on humans Head lice can affect anyone - it is most common among preschool and elementary school aged children (3-10 yrs) because of their close contact/play
- Adults CAN get head lice!
Head lice can affect anyone - it is most common among preschool and elementary school aged children (3-10 yrs) because of their close contact/play
- Adults CAN get head lice!
4. How do Head Lice Spread? Head lice crawl quickly from one head to another when in close contact
Head lice cannot fly, jump or hop
Head lice can be
transferred when personal
objects are shared
(e.g. combs, brushes, hats) Personal objects - i.e. combs, brushes, towels, hats, stuffed toys, pillows and clothing
Personal objects - i.e. combs, brushes, towels, hats, stuffed toys, pillows and clothing
5. Recognizing Head Lice Tickling feeling on scalp
Itchy scalp
Feeling of something moving in the hair
Irritability
Sores on head from scratching
Presence of nits (eggs), nymphs or adult head lice Tickling and persistent itching is caused by an allergic reaction to head lice saliva
Sores on head from scratching can become infected
Tickling and persistent itching is caused by an allergic reaction to head lice saliva
Sores on head from scratching can become infected
6. What do they look like? Adult head lice:
Tiny wingless brown insects; size of a sesame seed
Live for about 20 days
If a louse crawls off of a
head, it dies within 2 days Adult Head Lice
Grayish-brown in colour
Have hook-like claws that hold onto the hair shaft
Adult Head Lice
Grayish-brown in colour
Have hook-like claws that hold onto the hair shaft
7. What do they look like? Nymphs:
Are baby head lice
Smaller than adult
head lice
Mature in about 1
week
Adult Head Lice
Grayish-brown in colour
Have hook-like claws that hold onto the hair shaft
Adult Head Lice
Grayish-brown in colour
Have hook-like claws that hold onto the hair shaft
8. What do they look like? Nits (eggs)
Tiny specks; about the size of a knot in thread
Firmly attached to the hair close to the scalp
Usually found on the hair behind the ears, at the back of the neck, and above the forehead
Do not mistake for dandruff, which can be easily blown off
9. Treating Head Lice Ask your pharmacist for a recommended treatment product
Only use treatment when nits or head lice are present
Head lice products do not prevent head lice
Follow product instructions carefully to avoid re-infestation Treat head lice immediately
Use a commercial head lice product - available over-the-counter (without a prescription)
- R&C and Nix are covered under Ontario Works with a prescription
Treat head lice immediately
Use a commercial head lice product - available over-the-counter (without a prescription)
- R&C and Nix are covered under Ontario Works with a prescription
10. Treating Head Lice Products kill the head lice and many eggs
A second treatment is needed 7 to 10 days after the first treatment to kill any newly-hatched lice before they mature Treat head lice immediately
Use a commercial head lice product - available over-the-counter (without a prescription)
- R&C and Nix are covered under Ontario Works with a prescription
Treat head lice immediately
Use a commercial head lice product - available over-the-counter (without a prescription)
- R&C and Nix are covered under Ontario Works with a prescription
11. Steps to Treating Head Lice… Before applying treatment shampoo child’s hair over a sink with regular shampoo
Do NOT use conditioner or combination shampoo/conditioner
Many products require you to damp-dry hair with a towel or blow dryer
12. Wear plastic or rubber gloves to avoid unnecessary exposure to treatment product
Wrap a towel tightly over the child’s eyes to protect them
13. Apply the head lice product according to product directions
* Timing is important:
If product is rinsed off too soon, head lice and nits may not be killed
If left on too long, there is unneeded product exposure
may need to use a second bottle of product if child has long hair – ask your pharmacist
may need to use a second bottle of product if child has long hair – ask your pharmacist
14. Rinse child’s hair under tap, not in shower or bath, to minimize product exposure on the rest of the body
Wash your hands well after using product
Do not re-wash hair for several days after treatment
15. A second treatment is required 7 to 10 days later to kill any newly-hatched lice
If you see live head lice 24 – 48 hours after treatment, then immediately treat again with a different product Treating Head Lice
16. Treating Head Lice Talk to your family doctor:
If a child is under the age of 2
If you are pregnant or breastfeeding
If a person has a seizure disorder
If a person has broken or infected skin on the scalp
If lice are on eyebrows, eyelashes or facial hair
17. General Product Information Follow the directions
Timing is important
Do not mix products
Rinse child’s hair under tap
Products should not be used near the eyes, nose, or mouth
18. General Product Information Wear plastic or rubber gloves
Wash your hands after using product
Store products away from children
Do not apply to open or infected skin
19. Treating Head Lice… All nits should be removed after treating with product
Head lice products are not 100% effective; they may not kill all of the nits
Removing nits:
will reduce hatching of eggs that were not killed with treatment
will allow you to notice if a new infestation occurs
20. To remove nits:
Part and lift hair to check for nits or lice
Work under a good light (window or lamp)
Live lice can be removed with scotch tape wrapped around your finger
21. To remove nits:
Use fine-tooth nit comb or thumbnail/first finger to grab nit & slide it off hair shaft
Place nits in a plastic bag; when done, seal or tie up the bag and put in garbage
Take frequent breaks, especially with young children
Check & remove nits daily for 2-3 weeks
To remove nits:
- have person sit in a comfortable chair in a room with bright, natural light
- comb hair to remove tangles
- part and lift strands of hair to remove nits and lice
- If using nit comb, comb hair from the scalp to the ends, repeating until all nits and head lice are removed
- Not all nit combs are effective. Use your thumbnail against your first finger to grab the nit and slide it along the hair shaft.
To remove nits:
- have person sit in a comfortable chair in a room with bright, natural light
- comb hair to remove tangles
- part and lift strands of hair to remove nits and lice
- If using nit comb, comb hair from the scalp to the ends, repeating until all nits and head lice are removed
- Not all nit combs are effective. Use your thumbnail against your first finger to grab the nit and slide it along the hair shaft.
22. Treating Head Lice Avoid home remedies – no scientific proof of effectiveness
Do not use flea control products, turpentine, paint thinner, etc.
If your child has head lice, tell the school/child care facility & child’s close contacts immediately to prevent further spread
23. Housecleaning Wash in hot, soapy water:
Headwear, combs, brushes, pillowcases, towels, bed sheets
Excessive housecleaning is unnecessary
Do not use insecticide sprays To prevent re-infestation of head lice:
- Wash combs and brushes with soap and hot water
To prevent re-infestation of head lice:
- Wash combs and brushes with soap and hot water
24. Controlling the Spread of Head Lice Discourage head-to-head contact and sharing of hats, scarves, brushes, combs and headwear
Check heads of all people in close contact
Treat all family members with head lice at the same time
25. Controlling the Spread of Head Lice Check young school-aged children weekly for head lice; more often if there is an outbreak
If head lice continue to return, call your local health unit
26. Recommended Websites: Centre for Disease Control
http://www.cdc.gov/ncidod/dpd/parasites/lice/factsht_head_lice.htm
Canadian Paediatric Society
http://www.caringforkids.cps.ca/whensick/HeadLice.htm
University of British Columbia
www.healthcare.ubc.ca/lice/intro.html
27. Harvard School of Public Health
www.hsph.harvard.edu/headlice.html
American Academy of Pediatrics
http://aappolicy.aappublications.org/cgi/reprint/pediatrics;110/3/638.pdf
Please note that information about head lice
varies among sources
28. For more information…