This is what I received from my kids preschool when they had an outbreak of lice. Hopefully it helps!
WHO GETS LICE? Any child can get head lice. Head lice do not spread disease, and they have nothing to do with cleanliness. Head lice are a very common occurrence in school settings and they are very contagious.
WHAT ARE LICE? Lice are small, wingless insects that feed at the scalp of a human. This feeding causes persistent itching. Adult female lice attach tiny, grayish-white, tear drop-shaped eggs (nits) with a glue-like substance to the hair. They resemble dandruff but will not "flake" off. Eggs hatch in a week, and the lice are fully mature in 7-10 days. Female lice lay 3-4 eggs per day, producing an average of 90 eggs during her one-month life span. Head lice need a human host and cannot survive away from a host for more than three days. Pets do not carry head lice.
HEAD CHECK
Look for very small "dandruff" type flakes that do not "flake" off. Lice are hard to locate because they move quickly, are smaller than a tick, and shy away from light. Lice usually lay eggs along the back of the neck and around the ears. That is a good place to start looking. However, lice can lay eggs anywhere on the head. You will know it is a nit if it is attached to the shaft of the hair and you try to slide it off and it does not move easily. Any nits or lice that are noticed should be washed down the sink or flushed away. If you notice any lice or nits, you should proceed with the COMPLETE TREATMENT. If you do not notice any nits, then you should re-check your child daily, just to make sure you didn’t miss anything.
EXPOSED CLASSROOM If your child is in the exposed classroom, you may choose to treat your child, even if you do not see lice or nits. Lice and nits are very difficult to see and it takes a good deal of patience and great eyes to ensure that you thoroughly check your child’s entire head of hair.
COMPLETE TREATMENT Consult your doctor for further recommendations.
1. KILL LICE & MOST NITS. Permethrin (found in NIX) is the most effective in killing nits, but it is only 70-90% effective. The survivor nits will hatch in 7-10 days! Input that has been given to me is to purchase PRELL shampoo. Wash hair as usual, towel dry and then apply NIX brand shampoo according to the directions.
2. REMOVE ALL NITS. Choose a location that has good lighting and place a sheet over the chair. Plastic "nit combs" are not as effective as metal nit combs. SLP recommends you thoroughly check your child’s head with a metal nit comb, which will need to be purchased separately. You will want to section off the hair and move systematically through each section. If a nit or lice is seen in the section of hair, it is recommended that you do not move on to the next section of hair until the current section is clean of nits and lice. When that section is clean you will want to soak the comb in vinegar and clean the comb of any nits or lice. This will prevent you from actually putting them back in to the hair in a different location. You may have to go over the entire head two or three times to ensure complete removal. Be patient, as this can take hours, depending on the amount and length of hair. REMEMBER: Nix is not totally effective in killing all nits, and nits that ARE NOT REMOVED, will hatch into lice, thus starting the cycle over again.
3. CLEAN YOUR HOME. Since head lice can survive away from the human body for short
periods, and nits can hatch from hair that has fallen off your child, please be VERY thorough.
a. Vacuum everything including carpets, rugs, mattresses and upholstered furniture. Throw
away your vacuum bag.
b. Wash clothes, bed linens and towels using hot water, then dry on hot cycle for 30minutes.
c. Items not machine washable, such as stuffed animals, pillows, or comforters should be dry-cleaned or stored in sealed plastic bags for 14 days.
d. Soak combs, brushes, hair clips and bows, etc. for 30 minutes in hot water, at least 130F. Vinegar soaking is also effective.
e. Ask your doctor about using a lice spray on furniture, the car, car seats, bike helmets, and
other items that are hard to bag or vacuum. (NIX brand has been recommended.)
FOLLOW-UP
If your child does have lice, please notify your school. Continue to check your child daily for the next 7-10 days, incase you missed any nits and the nits hatch and begin the process again. I also encourage you to “minimize” the cloth items your child comes in contact with over the next two weeks. That way, if re-infestation does occur, you will not need to wash everything again.
Remember that contracting lice is NOT a hygiene or “dirty home” issue and is nothing to be ashamed of.