Fall is approaching and soon is going to be lice prevention season again. Head lice make their big comeback every year, from August to October, right around the time kids are back to school, piling backpacks and hoodies in one big heap by the classroom door.
According to the U.S. Centers For Disease Control and Prevention (CDC), an estimated 6 to 12 million lice infestations occur each year among children ages 3 to 11 in the United States, mostly spread through head-to-head contact with someone who has an infestation.
The search for a routine that actually keeps lice away can send families down a rabbit hole of mixed advice before anything sticks. However, most lice cases are entirely preventable with a few simple, consistent habits and basic understanding of how infestations happen.
Why do lice infestations ramp up at back-to-school season?
Lice need direct person-to-person contact or shared personal items to spread, because they can’t fly, only crawl. That’s why lice infestations often occur during back-to-school season: children are crowded together inside of a classroom and frequently touching each other while chatting or playing.
There’s also the item-sharing problem. Children, specifically small children, often swap hats, helmets, hair brushes, and other personal items that might be infested. It’s not common but lice can spread through certain infested objects, because it takes a couple of days for them to die without a human host.
Lice prevention: your back-to-school checklist
Lice prevention boils down to one idea: limit head-to-head contact and limit item-sharing. But avoiding head-to-head contact can be a challenge when kids are at school and not under your constant supervision. So, the best you can do is take care of their personal items and scalp. Here's how that plays out in real life:
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Do a weekly scalp check. Part the hair in sections and look at the scalp, especially behind the ears and at the nape of the neck, under good light. This helps you catch the presence of lice early, preventing an infestation.
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Tie up long hair. Lice crawls more easily on loose hair. Braids, buns, ponytails, and ponytail-plus-braid combos can make their lives harder. This method isn’t foolproof, but helps reduce the risk.
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Instruct against swapping. Hats, helmets, hair ties, headbands, and headphones are all easy hitchhiking spots for lice. A quick chat with your child to advise against swapping goes a long way. For small children, consider labeling their personal items so it doesn't end up in a friend's backpack by accident.
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Keep hair care items personal, even for siblings. Brushes, hair ties, and hats shouldn't get passed between kids in the same house, especially once one child has come home from a class with a known lice case.
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Store hats, scarves, and jackets separately. At school, coat hooks and cubbies often sit right next to each other. At home, avoid piling everyone's outerwear into one shared heap on the coat rack.
It may sound simple, but there’s no big hack or secret. Lice prevention is about keeping an eye in these everyday details consistently throughout the school year.
What should you do at the first sign of lice?
Finding out your child has lice doesn't mean anyone did anything wrong. Lice moves through classrooms constantly and, even if you do everything right, your children may still have contact with it. Fortunately, lice is treatable. Here’s what to do:
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Confirm it first. Look for live lice or nits (the eggs) close to the scalp, most often behind the ears and along the hairline at the back of the neck. Nits are small, oval, and stick firmly to the hair shaft, unlike dandruff, which flakes off easily.
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Treat right away. The CDC recommends an over-the-counter or prescription lice treatment as the first step, followed by careful combing with a fine-toothed nit comb to remove eggs and any remaining lice. Most treatments require a second application about a week later to catch newly hatched lice.
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Wash potentially infected items in hot water. Wash recently used bedding, pillowcases, hats, and hair accessories in hot water, at least 130ºF, then use the high heat drying cycle. Set brushes and combs to soak in hot water, the same temperature as the clothing, for about 10 minutes.
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Check everyone’s scalps. Everyone who shares a bed, a pillow, or close contact with the affected child should get a scalp check too, since lice often move between siblings before anyone notices the first case.
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Vacuum the infested child space. Do a quick vacuum on furniture (bed, sofa) around the house, but especially where the infested kid stays the most. But keep in mind that lice can't survive long off the scalp, so a full-house deep clean isn't necessary.
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Follow up daily. Recheck the scalp every day for about two weeks and comb through with a nit comb every two to three days to make sure nothing was missed. If lice are still present after a full round of treatment, or the scalp looks irritated or infected, it's worth checking in with your pediatrician.
Remember to let the school know. Most schools have a lice policy and appreciate a heads-up so they can keep an eye out. Many will do a discreet check-in rather than a schoolwide announcement, and your child can typically return to school after the first treatment, depending on the school’s guidelines.
A gentle daily haircare routine for the school year
Head lice is not tied to hygiene, but maintaining a hair care routine can keep on track of the scalps checks. Here’s a simple step-by-step to do at home:
Step 1: Wash gently, not obsessively
There's no need to overwash hair to prevent lice, since lice aren't a cleanliness issue. You don’t want to cause sensitivity to the scalp, so an every day wash is plenty. We recommend looking for a wash with lavender and rosemary aroma, because lice are repelled by those herbal scents.
Our Hair + Body Wash was formulated with plant-based ingredients, and available in a lavender + rosemary scent. Its formula also has natural extracts that won't strip natural moisture, which is important when you want to wash your child’s hair more frequently without causing dryness or irritation.
Step 2: Detangle with hair conditioner
After washing, condition and detangle the hair. Smoother, more manageable strands make daily brushing and scalp-checking easier. Our Hair Conditioner is nourishing, doesn’t leave residue, and is great for every age. Apply a quarter-sized dab at the ends, then work through the hair, and let it rest for three minutes. Then, rinse with warm water.
Step 3: Dry, brush (and tie it up, if possible)
Once the wash is done, brush the hair and consider doing a ponytail, braids, or a bun, if possible. This not only will help with the lice prevention, but also prevent the hair from getting super tangled by the next wash or scalp-inspection.
If possible, do a daily brush-through, ideally morning and night, and take the opportunity to glance at the scalp for anything unusual. Make it part of the same routine as brushing teeth so it never feels like an extra chore. The goal isn't a longer routine, it's a consistent one: inspect the scalp, clean hair, detangle, and tie up.
Frequently Asked Questions
Does having lice mean a child's hair is dirty?
No, head lice is not related to hygiene. Lice is attracted to the warmth of the scalp, needs human blood to survive, and it’s spread through direct head-to-head contact, sometimes through shared personal items. The scalp being clean or dirty is not a determining factor for an infestation.
Can pets spread lice to kids?
No, dogs, cats, and other pets can’t spread lice to children or humans in general. Lice is a species-specific parasite, meaning that the ones that affect a certain animal exclusively affect that animal, and the ones that affect humans only affect humans.
How long do lice live off the scalp?
Lice typically survive less than 24 to 48 hours away from a human scalp, since they feed off the human blood. That's why it isn't extremely necessary to worry about furniture or floors during a lice infestation, only washing recently used bedding, clothes, and hair accessories is enough.
Should I use lice prevention spray every day?
Daily preventive sprays can irritate the skin. On top of that, there isn't strong evidence in favor of these products. Consistent habits like not sharing clothing and accessories that touch the head (hoodies, hats) and toiletries are more recommended for lice prevention. Before using any form of medication on your children, consult a pediatrician.
When should I call the pediatrician about lice?
Reach out if a full course of treatment doesn't clear the lice, if the scalp looks red, swollen, or shows signs of infection. It’s also worth a call if you're not confident about identifying lice versus nits versus dandruff on your own.
Where do lice come from?
Lice comes from direct contact with another person who already has an infestation. It can only survive on a human scalp, so every new case traces back to head-to-head contact or, less often, sharing an item that touched an infested person's hair.
What does lice look like?
Adult lice are small, about the size of a sesame seed, and tan to grayish-brown in color, making them easy to miss in the hair. Nits (the eggs) are tiny, oval, and yellowish-white to brown, and they're glued firmly to the hair shaft close to the scalp.
How do you get lice?
Lice spread almost exclusively through head-to-head contact, which is why they move so easily among kids playing, hugging, or taking selfies together. Less commonly, they can spread through shared items that touch the head, like hats, hair ties, headphones, or pillows, since lice can survive off the scalp for a day or two.
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