Head lice, pediculus capitis
Every year, at the time of school re-entries (and not that!), lice invasions become a real nightmare for parents and teachers. Find in this folder a set of natural responses and products that will allow you to fight this insect at best.
The lice are hematophageal insects (blood nourishing,) responsible for frequent and contagious pest diseases called peiculosis.
There are three types of lice responsible for phtiriases (other name given to human pediculosis):
- Pediculus humanus corporis
- Phtirius pubis
- Pediculus humanus capitis
We're going to focus on the last one we find mainly on the head of our bambins.
The head lice, or capitis pediculus, touch 10% to 20% children in school between 3 years and 11 years. These are tiny insects from 2 to 3 mm, with six crocheted legs, that live and cling to the hair.
Unlike the ideas they received, they do not fly and do not jump but they crawl very quickly. as they breathe by holes that can close and become waterproof, do not hope to drown them by going to the pool !
The lice have a clear preference for children !
The head lice only infect man.
Transmission is strictly interhuman, direct or indirect. So, unlike some legends, the lice are unable to jump from one head to another. They don't fly either. either the heads are in direct contact, or there is an intermediary: object, combs, brushes, hats, scarves, coats, etc.
The lice can quite attack adults, but they prefer the promise between the children.
How's the head louse his host for food ?
The head lice spot their hosts with a highly specialized recognition system, called the choir, located on the antennae. these receptors are sensitive to different parameters:
- perception of heat
- infrared radiation
- day/night vision
- Chimio-olfactory (perception of specific molecules and odours)
Specific data (osmolarity, salinity, chemical composition) confirm to the “suceurs-piqueurs” as the lice that they are well sucking blood and that they can therefore feed themselves. the accuracy of the sensory perception is related to the number of choirs. the pouch that lives near its host has few antenna receivers (less than 50, compared to a mosquito or fly that can have up to 5000). They also serve the needs of sexuality.
The head lice can quickly become invasive !
The head lice stay close to the scalp to enjoy food, heat, shelter and moisture. If there is no treatment, they can live from 3 to 4 weeks. away from a human host, they can survive up to three days.
After mating, the adult female can produce 5 or 6 eggs per day for 30 days, a total of 100 to 200 eggs, called slow.
The egg hatches after nine to ten days and releases a nymph that mutates several times, until it becomes an adult head pouch.
After hatching, the empty egg shell remains fixed several months on the hair. it takes a bleaching color and gradually moves away from the root as the hair grows. the empty lentils look like pelicles but with the particularity of resisting the washing and brushing of the hair.
Lice: the puzzle for mothers and researchers
A few years ago, the effectiveness of anti-lice products seemed beyond reproach, so much so that it was difficult to distinguish which was the best.
But times have changed a lot. To cope with anti-lice insecticide products, lice have evolved by modifying their genetic heritage. Numerous studies carried out in various countries show that there are now lice resistant to the two reference products, pyrethrum derivatives and malathion.
Pay attention to the lice: be vigilant !
Careful, the sting of the pou causes itching and can, when the child scratches with not very clean nails, cause overinfection.
A thorough examination of your child's head :
- Where ? near the scalp, behind the ears, at the back of the neck, on the top of the head
- So a pancarte "the lice are back" is displayed in school, your child regularly scratches his head (be careful because some people can be asymptomatic and never feel itching), you see slow ones (not to confuse with the coats that they, do not stick to the hair).
Note: given the size of the slow, it is advisable to use, for hair control, a fine "special lice" comb and good lighting.
How do I recognize the lice ?
To know if you're dealing with lice, you need to explore the hair, dicks per dick, especially near the root, behind the ears and at the level of the neck. If you see a white/grey point, attach it between your thumb and your index finger. If you can't remove it by dragging it along the hair, it's probably a pou slow (also called egg). They are firmly glued and difficult to remove. and if it's really a slow one, then push your exploration a little further because it will certainly not be the only one. Do not forget to do the same with all family members.
And not to make confusion with pelicles, here are the tricks:
- the slowness of resistance when trying to separate it from the hair, unlike a film that falls on its own when shaking it.
- you won't be able to eliminate a slow after a simple hair wash. unlike the coats you can make disappear after some anti-pellicular shampoos.
- when your hair grows (approximately 1 cm per month), the slow separates from the hair at the same time. The more she gets away from the root of the hair, the more likely she is dead.
- the pelicles are of a very white color, unlike the lice lens of a more pearly/grassed aspect. The shape is also different. the slow has an elongated shape while the film can be very varied shapes and sizes.
2 - After shampoo, pass a specific fine comb in the still wet hair, to remove the slow ones .
3 - Renew the treatment two or three days later, to kill the survivors, and eight days later, to kill the slow hatches.
4 - Normally, it is not necessary to treat the whole family but in case of doubt, it is preferable for everyone to undergo the same treatment. you can in a second time preventive, use our shampoo Zeropou to prevent the lice from reinstalling.
5 - Spray it spray zeropou directly on the hair as preventive. This product based on lavendin essential oil is also an excellent repellent against lice. it will thus avoid the appearance of new slow and lice.
6 -THE coconut oil can be of real help to fight the lice. this vegetable oil with the peculiarity of forming a occlusive film asphyxiating lice and slow. our advice: enduce the child’s hair mass with coconut oil, then cover with a bath cap and let act all night. The following morning, wash and then use a rinse vinegar (1/10 of organic cider vinegar in water) to properly take off the slow. finish by carefully painting your child's hair with a lice comb.
The lice, as well as the eggs, which cannot live very long away from the scalp, it is not necessary to launch you into excessive cleaning. You must:
1 - Wash at least 50°C (the dryer can also be used) or treat (for non washable) with l'insecticide Ecodoo All objects likely to have been in contact with the lice: clothes, caps, hats, coats, scarves, collars and hoods of anrak, hats, doudous, dolls but also the entire bedding, the interior of motorcycle helmets, sofas, car seats.
2 - Rinse the hairbrush, comb, bars, elastics of your child and all hairdressing accessories, then dip them five to ten minutes in our treating lotion high zeropou Diluted to 5.% nota: if some essential oils, as lavender, may have a repulsive effect on the lice, they usually have no curative action.
Frequently asked questions about the head louse
R: That's right lavender is a repulsive against the lice. just put a few drops at the base of the hair.
R: Essential oil Lavender is rather effective against lice. a few drops in the stroke at the birth of the hair
R: Many people use essential lavender oil directly on the child's head. Now I'm not sure it's effective in broadcasting !
R: You should find answers to your questions at specialized sites on the lice.
R: According to our information, rather in preventive treatment.
R: Lavender would be effective but only preventive. In curative, you must treat.
R: Our product is a household insecticide, and while safe, it is not cosmetically approved. On the other hand, we have a very effective anti-lice treatment lotion based on coconut oil: see here.
- spray textile mites – Aries
- insecticide 4j diluted 5% - all insects
R: The shares of these 2 products are different. one, the spray mites textiles, composed of margosa gives a strong repulsive action. The lice will flee the treated places because they hate the smell and taste. the second, insecticide 4j 5% will have destructive action on all affected insects (including lice). It is composed of pyrethre that will act as a powerful neurotoxic.