School nurse head lice toolkit: letters, notices, checklist and policy templates

Published by Cartwheel, October 29, 2026. Written for school nurses, school health aides and principals. Nothing on this page is gated: every template is readable below and downloadable as a Word file you can put on your own letterhead. The guidance follows the American Academy of Pediatrics 2022 clinical report on head lice, the CDC and the National Association of School Nurses. Cartwheel makes Nit Happens lice treatment; the templates name no products.

The short version: a child with head lice may finish the school day, should be treated at home that evening, and may return the next morning. Nits alone are not a reason to exclude anyone, routine whole class screening is not recommended, and the child's identity stays confidential. The five documents below put that into words a school can send home or adopt as policy.

Download the templates

1. Parent notification letter

One page letter to the families of a class when a case is confirmed: how to check, what to do if they find lice, and the attendance policy.

Word fileRead it

2. Classroom notice (short)

Half page version for backpack mail or a class email.

Word fileRead it

3. Return to school note

Optional treatment confirmation form for families to return to the nurse. No nurse recheck required.

Word fileRead it

4. Screening checklist

Supplies, technique, what counts as an active case, what to tell the parent, what to document.

Word fileRead it

5. One page policy summary

What the AAP and CDC recommend, with six lines of policy language a school board can adopt.

Word fileRead it

Also: the one page fact sheet

Diagnosis, treatment options by active ingredient, prevention and school guidance on a single printable page.

PDF

All six files are free to copy, edit and distribute. No email address is required and nothing is tracked beyond ordinary page views. If your district needs a version with different wording, edit the Word file; if you would like us to host a district specific version, write to Cartwheel.

Template 1: Parent notification letter

[School letterhead]
[Date]

Dear families of [class or grade],

A case of head lice has been confirmed in your child's [class or grade]. Head lice are common in school age children, they do not spread disease, and having them has nothing to do with how clean a child or home is. We are letting you know so you can check your child at home this week.

How to check (about ten minutes)

Wet the hair, add plenty of conditioner, and comb from the scalp to the ends in small sections with a fine toothed metal lice comb. Wipe the comb on a white paper towel after each pass. Look closely behind the ears and at the back of the neck under good light. A live louse is tan or gray, about the size of a sesame seed, and moves. Nits (eggs) are tiny tan ovals glued to a single hair within about a quarter inch of the scalp; unlike dandruff, they will not slide or flick off.

If you find live lice or nits close to the scalp

Treat your child with a lice treatment, following the package directions, and comb out nits. Check everyone else in the household and treat only those who have lice. Wash hats, pillowcases and towels used in the last two days in hot water and dry on high heat; items that cannot be washed can be sealed in a bag for two weeks. Pesticide sprays for the home are not needed. Most treatments call for a second application 7 to 10 days later; please do not skip it.

If you find nothing

No treatment is needed. Please recheck every two to three days for the next two weeks, since an exposure can take time to show.

School attendance

Following the American Academy of Pediatrics and the CDC, [School name] does not send children home for head lice and does not exclude children who have nits. A child found to have lice may finish the school day, should be treated at home that evening, and may return the next morning once treatment has begun. We ask that you let the school nurse know if your child is being treated so we can keep an eye on the class, and we keep that information confidential.

Questions

Please contact the school nurse at [phone or email]. Reliable information is available from the CDC at cdc.gov/lice and from the American Academy of Pediatrics at healthychildren.org. [Optional: an evidence ranking of over the counter and prescription treatments, including which ones most US lice now resist, is at gocartwheel.com/pages/best-lice-treatment.]

Thank you for checking at home. It is the single most effective thing families can do to keep lice from spreading.

Sincerely,
[Name], [School nurse or principal]

Template 2: Classroom notice (short version)

Head lice have been found in [class or grade]. Please check your child's hair this week.

Lice are common in children, do not spread disease, and are not a sign of poor hygiene.

To check: wet hair, add conditioner, comb from scalp to ends with a fine metal lice comb, wiping the comb on a white paper towel. Look behind the ears and at the nape of the neck. Lice are sesame seed sized and move. Nits are tiny tan ovals stuck to the hair close to the scalp that do not flick off. Flakes that slide off are not nits.

If you find lice or nits close to the scalp: treat with a lice treatment per the package directions, comb out nits, check the rest of the household, wash recent bedding and hats in hot water, and repeat the treatment when the label says (usually 7 to 10 days later).

If you find nothing: no treatment is needed. Recheck every few days for two weeks.

Children are not sent home or kept out of school for lice or nits. Please tell the school nurse if your child is being treated; we keep it confidential.

School nurse: [name, phone or email]. More information: cdc.gov/lice.

Template 3: Treatment confirmation and return to school note

Student name: ______________________ Class or grade: __________

Date live lice or nits close to the scalp were found: __________

First treatment date: __________ Product or method used (optional): ______________________

Nits combed out: [ ] Yes [ ] In progress

Planned second treatment date (usually 7 to 10 days after the first): __________

Other household members checked: [ ] Yes [ ] Not yet

I confirm that treatment for head lice has begun and that I will complete the second treatment if the product directions call for one.

Parent or guardian signature: ______________________ Date: __________

Phone or email for the nurse to reach you: ______________________

School nurse section (optional): Recheck date __________ Live lice seen: [ ] No [ ] Yes Nits only: [ ] No [ ] Yes Notes: ______________________

Policy reminder for staff: under American Academy of Pediatrics and CDC guidance a child may return to school once treatment has begun. The presence of nits alone is not a reason to exclude a child or to require a recheck before return.

Template 4: School nurse screening checklist

For checking one student who has symptoms or a reported exposure. Routine whole class screening is not recommended by the AAP.

Before you start

  • Fine toothed metal lice comb, disposable gloves, white paper towels, good light, magnifier or phone camera, applicator sticks or a comb for parting hair.
  • Private space. Head lice checks are done one student at a time, never in front of classmates.
  • Reason for the check documented: symptoms reported, exposure reported, parent request.

Technique

  • Part dry hair in one inch sections, starting at the nape of the neck and behind the ears, then the crown.
  • Look for live lice (tan or gray, sesame seed sized, moving) and for nits glued to a single hair shaft within a quarter inch of the scalp.
  • Try to move anything you find. A nit will not slide along the hair; dandruff, hair casts and product flakes will.
  • If uncertain, pull a hair with the specimen on it and look under magnification, or photograph it next to a coin.
  • Combing wet hair with conditioner and a metal comb over a white paper towel is more sensitive than visual inspection alone when time allows.

What counts as an active case

  • A live louse: active infestation.
  • Nits within a quarter inch of the scalp in a child who has not been treated in the last month: treat as active.
  • Nits more than a quarter inch from the scalp only: almost always hatched or dead; not an active case on its own. Advise a recheck at home in two to three days.
  • Itching alone, flakes, or a classmate's case: not a diagnosis.

If lice are found

  • Call the parent or guardian privately. Explain what was found, that the child may finish the school day, that treatment should start at home that evening, and that the child may return the next morning.
  • Give or send the parent notification letter and the treatment confirmation note from this toolkit.
  • Advise checking everyone in the household and treating only those with lice.
  • Advise the second treatment 7 to 10 days later if the product directions call for it.
  • Do not identify the student to other families. Classroom notices name the class, never the child.

Documentation

  • Date, reason for check, findings (live lice, nits and their distance from the scalp, or none), parent contact made, materials sent home, planned recheck if any.
  • Keep records confidential and separate from general attendance notes.

What not to do

  • Do not send the child home early. Do not exclude for nits. Do not require a nurse recheck before return. Do not screen whole classes routinely. Do not recommend treating children who have no lice or no nits near the scalp.

Template 5: One page head lice policy summary

  • Head lice do not spread disease and are not a public health hazard. Infestations are common in children aged 3 to 11, spread mainly by direct head to head contact, and have nothing to do with hygiene. (CDC)
  • The American Academy of Pediatrics 2022 clinical report states that no healthy child should be excluded from or miss school because of head lice, and that no nit policies should be abandoned. (Nolt et al., Pediatrics 2022)
  • The CDC says students with head lice do not need to be sent home early; they can go home at the end of the day, be treated, and return after treatment begins. (CDC)
  • Routine classroom or school wide screening has not been shown to reduce infestations and is not recommended. Checks are done privately, one child at a time, when there are symptoms or a known exposure. (AAP)
  • Nits alone, especially those more than a quarter inch from the scalp, do not indicate an active infestation. Diagnosis requires a live louse or nits close to the scalp. (CDC, AAP)
  • No nit policies cause missed school days, lost work for parents and stigma for children without reducing transmission. (AAP)

Suggested policy language

  1. A student found to have live head lice may remain in school until the end of the day. The school nurse will notify the parent or guardian privately and provide information on treatment.
  2. The student may return to school the next day once treatment has begun. A note confirming treatment may be requested but a nurse recheck is not required for return.
  3. The presence of nits alone is not grounds for exclusion from school.
  4. The school does not conduct routine mass screening. Individual checks are performed by the school nurse when a student has symptoms or a reported exposure.
  5. The identity of a student with head lice is confidential. Classroom notifications name the class, never the student.
  6. Families receive written guidance on how to check at home, how to treat, and the second treatment most products require 7 to 10 days later.

Why no nit policies are on the way out

The AAP's 2022 clinical report puts it plainly: no healthy child should be excluded from or miss school because of head lice, and no nit policies should be abandoned. The CDC agrees that children do not need to be sent home early. The reasons are practical. Lice are already present for weeks before they are noticed, so exclusion does not stop spread; nits more than a quarter inch from the scalp are almost always hatched or dead; and in one study of 614 specimens submitted by parents, nurses and doctors, about four in ten were not lice or nits at all. The main effects of exclusion are missed school, missed work for parents and embarrassment for the child. The National Association of School Nurses takes the same position.

Treatment facts nurses are asked about

  • About 98% of US head lice sampled across 48 states carry the resistance mutations that make permethrin and pyrethrins (Nix, RID and most store brands) far less effective. A family that treated with one of these and still sees live lice a day later did not do it wrong.
  • Options that do not depend on pesticide susceptibility: over the counter ivermectin lotion, prescription spinosad, dimethicone lotions, wet combing, and pesticide free kits. Cartwheel's Nit Happens is one of those kits and is graded against the others, with sources, on our evidence ranking page.
  • Every treatment protocol includes a second application 7 to 10 days later because eggs hatch in 8 to 9 days and nothing kills every egg.
  • Treat only people with live lice or nits near the scalp; do not treat preventively.
  • Families who want help telling a nit from dandruff can use the two minute lice checker, and the full numbers are on the statistics page.

Questions school nurses ask

Can a child with lice stay in school?

Yes. The AAP and CDC both say the child may finish the day, be treated at home that evening and return the next morning once treatment has begun.

Should we send a notice to the whole class?

Many schools do. The notice should name the class, never the child, and should tell families how to check at home. Template 2 is written for this.

Do we need to recheck the child before they return?

No. A parent's confirmation that treatment has begun is enough. Nits remaining after treatment are expected and are not grounds for exclusion.

Should the school screen the whole class?

The AAP does not recommend routine classroom screening; it has not been shown to reduce infestations and it costs nursing time. Check individual children who have symptoms or a reported exposure, privately.

What should we tell families about which treatment to use?

Schools generally do not recommend brands. It is fair to tell families that most US lice are now resistant to permethrin and pyrethrin products, that a second application 7 to 10 days later matters, and to point them to the CDC's treatment page or an evidence based comparison.

Can we use these templates on our letterhead?

Yes. Download the Word file, edit anything, and remove the footer credit if your district requires it.

Sources

  1. Nolt D, Moore S, Yan AC, Melnick L; American Academy of Pediatrics. Head Lice. Pediatrics 2022;150(4):e2022059282 (clinical report).
  2. Centers for Disease Control and Prevention. Head Lice: About, Treatment, Head Lice in Schools. cdc.gov/lice. Accessed October 29, 2026.
  3. National Association of School Nurses. Head Lice Management in the School Setting (position statement).
  4. Pollack RJ, Kiszewski AE, Spielman A. Overdiagnosis and consequent mismanagement of head louse infestations in North America. Pediatric Infectious Disease Journal 2000;19(8):689-693.
  5. Gellatly KJ et al. Expansion of the Knockdown Resistance Frequency Map for Human Head Lice in the United States. Journal of Medical Entomology 2016;53(3):653-659.

This page is general information for school health staff, not medical advice. Cartwheel makes and sells Nit Happens; the templates above are brand neutral and may be used without any purchase.