Let's see how I tell you without being scared: even if I have finished the course, Your children may suffer from a lice infestation.Yes, those tiny parasites that have been bothering you for the past few months, the ones you wish you'd said goodbye to for good. The reasons? You may not have eliminated them properly. nymphs and nitsOr that by continuing to be in contact with other children in swimming pools, summer workshops, camps, parks or family gatherings, it becomes easy for these small insects to pass from head to head.
Because lice don't jump or fly, but when they have the opportunity to move along one hair to reach another, They climb and run very quicklyAlthough this isn't the first time we've talked about its removal, in this post we'll try to provide helpful tips to make your efforts truly effective.
It is worth remembering that with the high temperatures and humid environments The living and reproductive conditions of lice improve considerably, because the warmth emanating from the human body (their exclusive habitat) is complemented by those extra degrees that good weather provides. They love the humid heat.And there we have the little ones with their heads almost always wet in the pool, the beach or playing with water; proliferation is almost guaranteed.
It is popularly said that some children have more predisposition than others to be invaded by these tiny creatures. It's not entirely clear, but if you've never had lice at home, I'll say two things: first, congratulations (and may everything continue as it is); second, do not trustBecause, as has happened to me, you can go years without knowing anything about them and, suddenly, you can't get rid of their eggs, nymphs, and adult specimens, no matter what you do.
That's right. I don't need to tell you too much about them, but it's worth reviewing: if you examine the hair and see small, elongated, whitish eggs If they are very close to the hair, your child has nits (the eggs); rounded and darker pointsThese are nymphs (the babies); and if you see them walking (with their 6 legs) freely through the hair, they are adult lice.
Once lice have matured, they are not always easy to detect no matter how much you look, because of the characteristics of the hair. They can hide very wellThat's what nit combs are for when you suspect infestation (and we explain how to use them below). However, there is one unmistakable sign, intense scratchingWhen you see a child scratching the back of their head or the sides above their ears, and scratching with a certain desperation, there are almost certainly lice involved.
What is pediculosis and why is it not a hygiene problem?
La pediculosis It is the medical term for a head lice infestation. It usually affects mainly children between 3 and 12 yearsBut it can also occur in adolescents and adults, especially in school settings, camps, extracurricular activities, or families with several children.
It is important to clarify that pediculosis It is not related to a lack of hygieneLice will attach themselves to anyone's hair, whether it's clean or dirty. They don't care about hair type, economic status, or where you live: they're just looking for a comfortable, warm place with access to blood to feed on.
Although the image of lice is unpleasant, pediculosis It does not transmit serious diseases. Nor does it usually cause serious complications. The main problem is the intense itching and scratchingwhich can cause small wounds that, if infected, may require medical treatment.
Lice and their life cycle
And now what? What do I do?, you ask yourself the first time lice get into your house (whether the children are 3 or 9 years old). Well to eradicate them, logicallyand repeat the treatment and check-ups until not a single nit remains.
Because look: as a rough estimate, It is estimated that around 9 females can be born out of every 10 nits. And each female can lay several eggs a day (classic figures suggest up to 8–10 eggs daily), which explains how quickly an infestation grows if left unchecked. Some data indicate that around 60% of eggs They can develop into adults if you don't intervene. Furthermore, nits lay very close to the scalp, at most...
Approximately towards 7 to 12 days Once the egg has been laid, it hatches and a chick is born from it. nymphFrom the very first moment, it sucks blood from the scalp and is bothersome. After about three molts and around two weeks, the louse is mature and can reproduce. An adult louse can live approximately 3 to 4 weeks in the head, and the overall life cycle (egg, nymph and adult) is around 28 to 35 days, with overlapping generations.
If you've let the situation get to this point, be diligent and very patient. The cycle repeats and overlaps, which is why consistency in elimination and checkups is essential.
How to recognize lice, nits and nymphs
To avoid confusing them with dandruff or other particles, it's helpful to know what they look like:
- Adult louse: It measures between 2 and 3 millimeters, is grayish or brown in color. It moves quickly and is usually seen mainly on the nape of the neck and behind the ears.
- Nymph: like a miniature adult louse, much smaller (around 1–1,5 mm). Within a few days it can already feed and cause discomfort.
- Nit: The louse egg is oval-shaped and whitish or yellowish; it may turn brown as it develops. strongly attached to the hair shaft by a kind of natural "glue" and does not come loose with a simple wash.
A useful trick: when you see a small white dot attached to your hair, blow gentlyIf it moves and goes away, it's probably dandruff; if it doesn't move and remains completely attached to the hair, it's very likely to be a nit.
How are lice spread?
The main form of contagion is direct head-to-head contactLice are crawling insects, They don't jump or flyBut they climb easily and move from one hair to another when heads are very close together for a while: games, hugs, selfies, floor activities, shared reading, etc.
Contagion through personal items (Hats, combs, helmets, headphones, pillows…) are possible, but considered less common. Even so, it's advisable to take precautions at home, in schools, camps, or gyms, because a louse can survive off the head. up to 24–48 hours while waiting for a new guest.
Also keep in mind that lice They only live on the scalp and the hair on your head. If you find parasites on eyelashes, eyebrows, or body hair, it could be other species such as pubic lice (Pthirus pubis), which are different and require a different approach.
Get rid of lice!
Classic chemical pediculicides, especially those containing permethrin or pyrethrinsThese treatments are becoming ineffective in many cases, as lice have become resistant. There are other, more modern products that are derived from silicone (such as...) dimethicone) or other physical compounds (such as the octanediol) that act killing by dehydration and not through insecticidal action. They are more expensive, although the investment is usually worthwhile because they do not generate resistance as easily and have a better safety profile.
In specific cases, and when usual treatments fail, the pediatrician or dermatologist may assess stronger lotions (malathion, spinosad, topical ivermectin) or even specific oral medication, always under medical supervision. These drugs are used primarily in very stubborn infestations or those with constant recurrences.
However, exercise caution: There is no product that guarantees 100% the death of all nitsTherefore, mechanical removal (by pulling) with a nit comb and a thorough inspection are always necessary. Furthermore, nits are firmly attached to the hair and can sometimes be difficult to remove, even with good products.
Yes, but what exactly do I do?
- If you use a pediculicide product: Apply it thoroughly, following the manufacturer's instructions in detail, covering the entire area from root to tip, and scrupulously respecting the recommended application time. Then, proceed to thoroughly comb through all of the hair with a nit comb. strand by strand, repeating several timesThe treatment is repeated around 7–10 dayswhich is when the eggs that were recently laid will have hatched and the new nymphs can be removed.
- If you do not use a product (mechanical method): Use a nit comb daily, ideally on damp hair after applying conditioner or a product that facilitates combing. Continue until no more nymphs or viable nits are found, and maintain intensive combing for a few more days as a boost. This method requires a lot of perseverance and monitoring for possible re-infestations.
Buy good nit combs, preferably metal with long, closely spaced prongsAsk at your pharmacy for models with micro-grooved teeth or those specifically designed to remove nits, because the quality of the comb makes a big difference in the results.
Natural remedies and systematic hairstyling
More and more families are looking for options less aggressive on the scalp and the environment. Although drug treatments remain the first recommended option in many cases, there are physical and natural methods which can help, especially when combined with the correct use of the nit comb.
- Coconut oil: It forms an occlusive film around the louse, which can hinder its breathing and movement, as well as making it easier for the lice comb to glide. Apply a generous layer to dry hair, cover with a shower cap, and leave on for at least 2 hours before thoroughly combing.
- White or apple cider vinegar: Its acidity helps to soften the sticky substance This product helps nits adhere to the hair, making them easier to remove. It can be used as a final rinse or applied warm directly to the hair, leaving it on for a few minutes before using a nit comb.
- Tea tree essential oil: It has antiparasitic properties and is mainly used as preventive supportIt should always be used diluted (in water for spraying or mixed with regular shampoo), avoiding contact with eyes and mouth and performing a skin tolerance test beforehand.
- Electric comb or metal nit comb: Although they aren't "natural" treatments per se, they are essential physical tools. Using a nit comb daily for 7–10 days, in conjunction with your chosen treatment, is key to interrupting the breeding cycle.
It is important to remember that many traditional home remedies do not have solid scientific evidence and some can even be dangerous. Flammable or toxic products such as kerosene, gasoline, or animal insecticides should never be used. Highly fatty substances (petroleum jelly, mayonnaise, margarine) are also not recommended as the sole treatment, since They have not demonstrated consistent effectiveness. and can be difficult to remove from the hair.
Avoiding contagion
This is the hardest part, because you can't tell the little ones to stop putting their heads together; that would be absurd and unrealistic. What you can (and should) do is prevent them from sharing personal items that come into contact with the head: towels and bathing caps, diving goggles, headbands, hair clips, hair ties, combs, headphones, helmets, etc.
There are probably no lice or eggs in the scarf your daughter is wearing because these They prefer hair to fabricBut just in case, it's advisable to wash them fairly often if there are cases of head lice nearby. Some families soak the brushes in water for several hours; others prefer to wash them thoroughly with hot, soapy water, or disinfect them with alcohol. The important thing is that do not share for as long as the infestation lasts.
It's also a good idea for girls to wear their hair down very well stretched and gathered (braids, high ponytails, buns, tight updos) will make it harder for lice to climb up from outside and also make it harder for those already on the head to spread to other heads. If your children play with other children daily and you suspect they may have lice, you can use repellents and use a nit comb at least once a week.
There are repellent lotions Specific treatments are available, some with low doses of pediculicides and others with natural ingredients. More natural options are also available, such as... Diluted and powdered tea tree oil applied to the hair or emulsified with shampoo; it usually works as an additional measure, but you have to watch that the little ones do not ingest it or get it in their eyes.
Water and lice
No, lice they don't swimIf they pass head to head in the pool, it's because the children are playing very close together when getting out of the water or at the edges, not because they are swimming from one child to another.
They are so firmly attached to children's hair (and often to adults' hair as well) that They don't come off easilyNot even with pool chlorine or long periods in the water. So don't try to get rid of them by splashing around: you'll get tired and you won't be able to defeat them that way.
Home environment: cleaning and personal items
In addition to treating the head, it is advisable to take some measures in the environment to reduce the risk of a few stray lice re-infest to family members.
- Bed linen and towels: Wash sheets, pillowcases, towels and clothes that have been in contact with the child's head in hot water (around 60°C) and tumble dry on high if possible.
- Non-washable clothing: If there are clothes or accessories that cannot be washed in hot water, you can store them in tightly sealed plastic bags for about 10–15 days, or resort to dry cleaning. Another option is to put them in the freezer for a few days, if the size allows.
- Soft surfaces: Vacuum sofas, armchairs, carpets, and car seats to remove any stray lice. There's no need to be obsessive, but extra cleaning is recommended during the treatment period.
- Combs and accessories: Wash combs and brushes with hot, soapy water after each use, or soak them in hot water for several minutes. The key is that Each family member should use their own comb and do not share them until the infestation is under control.
Classic trick with olive oil (and important nuances)
I've saved for last a very popular "old wives' tale" that many families still use to facilitate mechanical removalIf you soak your hair in warm olive oil and wrap it in cling film or a shower cap for about an hour, the hair will be more slippery when you use a nit comb, and in many cases, they detach more easily both lice and nits.
This doesn't mean that olive oil is a definitive pediculicide or that you can forget about other measures. Although it can help immobilize lice and make them easier to remove, other methods are necessary. Repeat the process for several days and combine it with a thorough hair check. Furthermore, it should never be applied to babies or people with dermatological problems without first consulting a professional.
Whatever strategy you choose, the best remedy is still you. Patience and perseveranceDon't let tiredness or discouragement get the better of you: checking calmly, respecting the treatment repetitions, using the nit comb properly, and maintaining basic prevention measures make the difference between an infestation that lasts for months and one that is controlled in a few weeks.
Lice are part of those little parenting battles that seem endless, but with clear information, good products, proper use of the lice comb and lots of consistency, it is perfectly possible to keep these tiny intruders at bay and restore peace to the whole family.
Images - Gilles Sanmartin, Deutsche pediculosis
Life cycle image - Remove lice.