How can I tell how long my child has had head lice, by the number if nits?

Not by the number... ...But by their location on the hair shafts. A head louse will attach her eggs (which is what nits are) to hair shafts at the point where they come out of the skin. As the hair grows, the nits move up from the scalp surface. Hair grows about 1 inch per month, on average - so if the nits are a half-inch away from the scalp, lice have been present for about 2 weeks; an inch away, 4 weeks; and so on.

Related Questions

I was exposed to a child who had been treated for head lice last wednesday night. I did not hug her but I am concerned. I have been checked several times since then and show no signs. How long should I have people keep checking?

Head . Head lice is the most common cause of lice infestation. They are transmitted by person to person contact such as sharing combs, pillows, hats, headphones, etc. - they cannot jump or fly. Since they die if not feeding on a human after 2 days, furniture and carpets are not commonly thought of a way to transfer lice. Diagnosis is made by seeing adult lice or "nits" which are little white egg sacks cemented onto the hair shaft. If you have not seen these, you do not have lice. Usually, the adult lice are transmitted alive, so if you have them, you see them from the beginning. If you do find head lice, you can treat it with over the counter treatments such as rid or nix (permethrin). You can also call your doctor for advice. Legal disclaimer: I am providing this general and basic information as a public service and my response to this question does not constitute a doctor-patient relationship. For any additional information, advice, or specific concerns, please speak with your own physician. The information provided is current as of the date of the answer entry. Read more...
No problem. Head lice is only spread thru intimate contact or by sharing combs and brushes. Read more...

How long does it take a child to get rid of head lice?

Less than a week. Now many head lice are resistant to our traditional therapies. Cheap method which works is to apply gold listerine to the scalp x 1 hour and cover with shower cap. Then apply househould vinegar and comb through the entire head using sections of 10-20 hairs to remove all nits or eggs.. Leave the vinegar x 1 hour then wash. Repeat in 1 wk. New study showed oral Ivermectin works well. Need an rx! Read more...

How long does it take to get rid of head lice in a child?

One treatment. Generally, one treatment (shampoo, nit comb, hair accessory/brush cleaning and linen/bedding change) should be sufficient to rid one of lice. However, reoccurrence is common due to re-infection from improper cleaning of accessories, brushes or linens. Read more...

What do you suggest if my child has head lice please help?

Treatment of lice . requires accurate identification of nits & / or lice. A pediculicide is usually used- OTC like Nix (permethrin) or RID or prescription meds like lindane or malathion. Work carefully through hair & remove individual nits. Purchase a special lice nit comb to aid you. Check for nits & remove as seen over the next 7 to 10 days. If there are nits after 7 to 10 days – a 2nd pediculicide tx may be needed. Read more...

A child in my school has head lice, how do I prevent my child from catching it?

Head lice prevention. Don't share lockers or exchange hats or helmets at school, keep all children's headgear in seperate cubbyholes. Have daily scalp inspections of your children at home, make sure the school knows the difference between lice and nits, and that a no-nit policy is antiquated. Read more...
Head lice. Simply put, you can do everything right and your family could still end up with lice. And of course, head lice have nothing to do with hygiene or income level; anyone can get them. The most common route of transmission is head to head contact, such as two kids bending over the same coloring book. Read more...

My child has head lice. What should I do?

Call your doctor. There are medications that can be used to kill the lice. Use them as directed (very important!). Wash all the bed linens in hot water and remove any stuffed animals, pillows that your child sleeps with until they are cleaned. Comb all the nits until they are no longer appearing- this is very time-consuming, but necessary. Read more...

What are symptoms of head lice in a child?

Itching, or none. Many children have no symptoms whatsoever, despite a good-sized infestation. Other children may have itching or a rash around the scalp. The diagnosis is made by finding live lice and/or nits in the hair. To check for lice, use a very fine-toothed comb to comb through wet hair section by section, looking for nits and adult lice. Read more...