They spread when people's heads touch or when they share hats and other clothing, combs, brushes, headbands, barrettes, and bedding like sheets, blankets, pillowcases, and sleeping bags. If lice are stuck on any of these things and that thing touches another person's head, that person may also get lice.
Lice spread in classrooms and schools because kids play together closely and often share more stuff than adults do. If your head feels very itchy, tell an adult as soon as possible. This is especially true if you know that other kids in your class or school have had lice. Don't wait around — the more time the lice have to lay nits, the itchier you will be! Often a parent or school nurse can recognize head lice just by looking for nits in the hair.
Some kids' parents will take them to the doctor so the doctor can check to see if lice are there. If a kid has lice, an adult will need to buy a special medicated shampoo, cream, or lotion that kills lice.
An adult will need to apply the medicine and follow the directions. Part of the treatment is combing your hair with a fine-tooth comb to remove the nits.
The shampoo, cream, or lotion usually kills the lice right away. The itching should go away within a few days, but treatment may need to be repeated in 7 to 10 days to kill any new lice that may have hatched since the first treatment. Do not use a hair dryer on your hair after washing with the medicated shampoo, lotion, or cream because they can contain flammable ingredients.
You don't want your hair catching on fire. Your parent also can try removing the nits and lice by hand. To do this, your mom or dad will use a fine-tooth comb on your wet, conditioned hair every 3—4 days for 3 weeks after the last live louse was seen.
Wetting the hair temporarily stops the lice from moving, and the conditioner makes it easier to get a comb through the hair. Although lice can live for only 1 to 2 days off a person's head, it's a good idea for an adult to wash all your bedding, hats, clothing, and stuffed animals in hot water. Or they can seal these things in airtight bags for 2 weeks. That also will kill the lice and their eggs. Vacuuming the carpets, upholstery, and car seats will take care of any lice that fell off before treatment.
Combs, brushes, and hair accessories need to be soaked in hot water, washed with medicated shampoo, or thrown away. Symptoms include a tickling sensation, or feeling something moving through the hair. An allergic reaction to the bites causes itching.
The adult louse is no bigger than a sesame seed and is grayish-white or tan. Nymphs baby lice are smaller, and can be black, clear, or even blood red.
Lice eggs, often called nits, look like tiny yellow, tan, or brown dots before they hatch. After hatching, the remaining shell looks white or clear. Nits are literally glued to the hair shaft and are very difficult to remove. Head lice do not jump, fly or swim. They are good crawlers, however, and will readily move from one person to another when the hair of the two people is in contact.
There are no reliable data to suggest that head lice carry or transmit disease organisms. However, DNA technology shows head lice to be the same species as the notorious body louse which has long been associated with diseases such as typhus and relapsing fever.
It may be possible for head lice to carry diseases, but no cases have been reported. Increasing numbers of consumers are finding that the most popular treatments for head lice — including chemical shampoos and home remedies — are largely ineffective.
Head lice are rapidly evolving chemical resistance to many of the traditional pesticide-based control methods [which have never been able to kill eggs nits effectively and usually require repeated treatments]. Louse combs can be effective for removing lice and eggs, but the comb-out process can be very tedious, and many busy parents do not have the time or patience for effective combing. In desperation, some parents resort to home remedies such as bug spray, mayonnaise or kerosene, but there is little hard evidence that these remedies are effective, and some home remedies can actually be harmful.
As a result, parents and school authorities are searching for a safe, fast and effective treatment that will solve the problem and help keep children in or quickly return them to school. Nymphs: Nymphs are immature lice that mature into adults about a week after hatching from the egg.
If they come off the host, they die within 24 hours. Female adult lice lay 4 to 8 eggs per day and can lay or more eggs during their lifetime. The eggs are glued to hair shafts, and hatch in days. It takes another days for the female louse to mature. She mates 24 hours later and starts laying eggs. There is not a difference although a nit is usually referred to as the empty shell and the egg as a viable egg.
Sometimes people refer to one or the other in relation to its viability. Children, like adults, do not want nits in their hair- dead or alive. The time it would take to make the distinction is time far better spent removing ALL the nits. Just because there is a louse inside does not confirm the fact that is was alive.
Some products do have an ovicidal effect killing louse in the egg and some eggs are just laid and do not survive. Head lice actually prefer a clean head of hair. Lice, however, are not prejudicial.
To accomplish this, the louse needs to feed and is always looking for the most convenient means of doing so. When lice are in water, they go into a state of suspended animation but remain firmly locked onto the hair.
This is how they survive shampooing, rain, seawater, and swimming pools. Risk of transmission will occur with the sharing of towels. What are some steps I can take to help prevent and control the spread of head lice?
Avoid head to head contact during play, sleepovers, or other activities at home, school, and elsewhere. Do not share combs, brushes or towels used by an infested person.
Do not share clothing such as hats, scarves, coats, hair ribbons or barrettes. Machine wash and dry clothing, bed linens, and other items that an infested person used or wore during the previous 2 days using a hot water laundry cycle and high heat drying cycle. Do not use fumigant sprays or fogs; they are not necessary to control head lice and can be toxic if inhaled or absorbed through the skin.
It is very common for close family or friends of infested individuals to also have lice. It is suggested that you check everyone in the household. You do not want to treat anyone who does not have lice, however many clients who have a family member with lice will choose to have a dimethicone oil treatment. This treatment, which is completely non-toxic, is a quick and easy way to kill any small bug that may be in the hair, but is very hard to find. The bites can cause itching.
They did a new study in The results of the latest survey have not been published, but the researchers are going through their data now. The researchers used lice combs to comb through the hair of several thousand children at twelve schools in Oslo for their study.
They recorded hair characteristics, among other factors. Hair colour didn't matter, said Rukke, but people with wavy hair had the highest incidence of lice. People with straight hair had the least lice, and people with curly hair were in the middle. But what mattered much more was the length and thickness of the hair, Rukke said.
People who had medium long hair had the highest incidence of lice compared to those who had short and long hair. People with short hair were least likely to have lice, and people with thick hair more often had lice than those with thin hair.
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