Adult lice and nymphs baby lice. Adult lice are no bigger than a sesame seed and are grayish-white or tan. Nymphs are smaller and become adult lice about 1—2 weeks after they hatch. This life cycle repeats itself about every 3 weeks. Most lice feed on blood several times a day, and they can survive up to 2 days off the scalp. With lice bites come itching and scratching. This is due to a reaction to the saliva spit of lice.
But the itching doesn't always start right away. It depends on how sensitive a child's skin is to the lice. It might take weeks for kids with lice to start scratching. They may complain, though, of things tickling or moving around on their heads. Small red bumps or sores from scratching. Some kids have mild irritation from scratching, while others may get a bothersome rash. Scratching a lot can lead to a bacterial infection. Watch for swollen lymph nodes glands on the back or front of the neck, and red, tender skin that might have crusting and oozing.
Doctors can treat a skin infection with an antibiotic. How Are Head Lice Treated? The two main ways to treat lice are: medicine removing by hand Medicine: Medicated shampoos, cream rinses, and lotions are available that kill lice.
Are Head Lice Contagious? Pets can't catch head lice and pass them on to people or the other way around. Can We Prevent Head Lice? To get rid of head lice and their eggs, and to help prevent them from coming back: Wash all bed linens, stuffed animals, and clothing used during the 2 days before treatment any lice that fell off before that will not be alive.
Dry clean items that can't be washed. Or put them in airtight bags for 2 weeks. Vacuum carpets and any upholstered furniture in your home or car , and throw away the vacuum cleaner bag. Soak hair-care items like combs, barrettes, hair ties or bands, headbands, and brushes in hot water or throw them away. Tell kids not to share these items. Because lice easily pass from person to person in the same house, check all family members.
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. Head lice cannot survive off of a human head for more than 24 hours.
It is recommended that you do not use pesticide sprays in your home; they will unnecessarily expose your household to harmful chemicals. Lice are not environmental pests so pesticide sprays for furniture and bedding are unnecessary. Vacuuming is the safest and best way to remove lice or fallen hairs with attached nits from upholstered furniture, rugs, stuffed animals and cars.
Actual clinical results show that lice cannot live past 16 hours without feeding on a blood meal. Bag the items or isolate the items that cannot be washed for 3 days to starve and kill all lice that may have landed on them. All other washables and bed linens can be put in the washer and dryer for the lice to be washed away or killed during the cycle. Wash only items that cover the bed and pillows cases, not underlying covers, pillows, underlying padding.
You can place them on the top rack of the dishwasher or soak items in HOT not boiling water for 20 minutes. You can also put them in a plastic bag in the freezer for 24 hours. The device delivers carefully controlled heated air directly to dry, untangled hair, at a temperature cooler than most blow dryers and at a much higher flow rate.
The applicator tip is designed to penetrate beyond the insulating layer of hair and is used to lift the hair slightly while directing airflow right onto lice and eggs which tend to be near the scalp and root of the hair. You can think of this as the louse teenager stage, based on the various molting phases the louse might be. During the third and final molt, the gender is determined based on what is needed for a growing colony and are now officially adults. Once genders are determined, the females will mate, and the life cycle begins again.
LCA featured on The Doctors. See All US Locations. Although reliable data on how many people in the United States get head lice each year are not available, an estimated 6 million to 12 million infestations occur each year in the United States among children 3 to 11 years of age.
In the United States, infestation with head lice is much less common among African-Americans than among persons of other races, possibly because the claws of the head louse found most frequently in the United States are better adapted for grasping the shape and width of the hair shaft of other races.
Head lice move by crawling; they cannot hop or fly. Head lice are spread by direct contact with the hair of an infested person. Anyone who comes in head-to-head contact with someone who already has head lice is at greatest risk. Spread by contact with clothing such as hats, scarves, coats or other personal items such as combs, brushes, or towels used by an infested person is uncommon.
Personal hygiene or cleanliness in the home or school has nothing to do with getting head lice. Nits are firmly attached to the hair shaft and are oval-shaped and very small about the size of a knot in thread and hard to see. Nits often appear yellow or white although live nits sometimes appear to be the same color as the hair of the infested person. Nits are often confused with dandruff, scabs, or hair spray droplets.
Head lice nits usually take about 8—9 days to hatch. This is difficult to distinguish with the naked eye. Nymph: A nymph is an immature louse that hatches from the nit. A nymph looks like an adult head louse, but is smaller. To live, a nymph must feed on blood. Nymphs mature into adults about 9—12 days after hatching from the nit. Adult: The fully grown and developed adult louse is about the size of a sesame seed, has six legs, and is tan to grayish-white in color.
Adult head lice may look darker in persons with dark hair than in persons with light hair. To survive, adult head lice must feed on blood.
Adult female head lice are usually larger than males and can lay about six eggs each day. Head lice and head lice nits are found almost exclusively on the scalp, particularly around and behind the ears and near the neckline at the back of the head. Head lice or head lice nits sometimes are found on the eyelashes or eyebrows but this is uncommon.
Head lice hold tightly to hair with hook-like claws at the end of each of their six legs. Head lice nits are cemented firmly to the hair shaft and can be difficult to remove even after the nymphs hatch and empty casings remain. Head-to-head contact with an already infested person is the most common way to get head lice.
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