Head Lice in Children: How to Check, Treat and Stop Them Coming Back

A few weeks after schools reopen, many parents in Oman get the same message from the class group: "there are lice in the class." Head lice are extremely common in children aged about 4 to 11, and catching them has nothing to do with poor hygiene — lice are just as happy in clean hair as in dirty hair. The good news is that they are harmless and can be cleared at home with the right method and a little patience.

What Are Head Lice?

Head lice are tiny grey-brown insects, about the size of a sesame seed when fully grown. They live close to the scalp and feed on small amounts of blood. Females lay eggs that stick firmly to the hair near the root. The empty white egg cases left behind after hatching are called nits.

Lice cannot jump, fly or swim. They spread by crawling from one head to another during close head-to-head contact — exactly what happens when children play, hug, share a phone screen or lean together over a book. Sharing combs, hair ties, headscarves or hats plays a smaller role.

Signs Your Child May Have Head Lice

• An itchy scalp, especially behind the ears and at the back of the neck
• A feeling of something moving in the hair
• Small red spots or scratch marks on the scalp or neck
• White specks stuck to the hair that don't brush off like dandruff

Itching is not always present, especially early on, so the only way to be sure is to find a live louse. Nits alone don't prove an active infestation — they can stay stuck in the hair long after the lice are gone.

How to Check for Head Lice (Detection Combing)

You need a proper fine-toothed metal lice comb — ordinary combs have teeth that are too far apart. A lighted lice comb makes lice easier to spot on dark hair.

1. Wash the hair and apply plenty of ordinary conditioner. Conditioner slows lice down and makes combing painless.
2. Detangle with a normal wide-tooth comb.
3. Starting at the scalp, draw the lice comb slowly through to the ends of the hair, one section at a time.
4. After each stroke, wipe the comb on a white tissue and look for lice.
5. Work around the whole head, then rinse.

It is a good idea to check every child in the family on the same day — and parents too.

Treatment Option 1: Wet Combing

Wet combing uses only conditioner and a lice comb, so it suits younger children, people who prefer to avoid chemicals, and anyone with a sensitive scalp. It works well but needs discipline:

• Comb the whole head thoroughly, as above, on days 1, 5, 9 and 13. This catches newly hatched lice before they are old enough to lay eggs.
• Check again on day 17. If you find no live lice, the head is clear.
• Allow 10 minutes for short hair and 20–30 minutes for long, thick hair.

Treatment Option 2: Lice Lotions, Sprays and Solutions

Pharmacy lice treatments kill lice faster and are useful when wet combing alone hasn't worked or isn't practical. There are two broad types:

• Physical treatments (silicone- or oil-based, such as dimeticone) coat the lice and stop them working. Lice can't become resistant to them. Hedrin Once Spray Gel works this way.
• Other lotions and sprays, such as Stopoux Anti-Lice Spray, No Lice-D Solution and Delice Solution. Check the pack for the active ingredient and how it works.

Whichever you use:

1. Read the leaflet carefully and check the minimum age and whether it is suitable in pregnancy, for asthma or for a sensitive scalp.
2. Apply it to dry or wet hair exactly as the pack says, making sure the whole scalp and all the hair is covered, and leave it on for the stated time.
3. Many treatments need a second application about 7 days later to kill lice that hatch from eggs the first treatment missed.
4. Comb through with a lice comb after treatment to remove dead lice and nits, and do a detection comb a few days after the last treatment to confirm success.

If a treatment doesn't work after two correct applications, ask your pharmacist — switching to a product with a different way of working usually solves the problem.

Stopping Lice From Coming Back

• Check weekly during term time with a lice comb, for example every Friday after hair wash.
• Treat only people with live lice, but check everyone in the house on the same day so lice don't pass back and forth.
• Tie long hair back in a braid or bun for school.
• Don't share combs, brushes, hair ties or headscarves while someone has lice.
• Tell the school or other parents so classmates can be checked too — re-infestation from the class is the most common reason lice "keep coming back".
• Wash pillowcases and hair accessories used in the last couple of days in hot water. Deep cleaning the whole house is not necessary — lice die quickly away from the scalp.

Don't use lice treatments "just in case" to prevent lice. They don't prevent infestation and repeated use can irritate the scalp. A gentle everyday kids' shampoo and regular combing are enough.

Myths About Head Lice

• "Lice mean the child is dirty." False — lice prefer clean hair as much as any other.
• "You need to cut the hair short." Not necessary; proper combing and treatment work on any length.
• "Tea tree, lavender or other oils will kill them." There is no good evidence that essential oils, vinegar or mayonnaise clear head lice, and some oils can irritate a child's skin.
• "Lice can jump from pets." Human head lice live only on humans.

When to See a Doctor

Most cases can be managed at home or with advice from a pharmacist. See a doctor if the scalp looks infected (weeping, crusting, swelling or tender lumps in the neck), if your baby is very young, or if lice persist despite correct use of two different treatments.

Frequently Asked Questions

How long does it take to get rid of head lice? With wet combing, about two weeks (days 1 to 13, with a final check on day 17). With a lotion or spray, usually one treatment plus a repeat after about a week.

Should my child stay home from school? Health services such as the UK's NHS say there is no need to keep a child off school because of head lice once treatment has started. Check your own school's policy and let the teacher know so the class can be checked.

Do I need to remove every nit? Empty nits are harmless and will grow out with the hair, but combing them out helps you see whether the treatment has worked.

Can adults get head lice? Yes. Parents and older siblings often catch them from younger children, so check the whole family.

Is it safe to use lice treatment on a toddler? Some treatments have a minimum age. For young children, wet combing with conditioner is the safest first choice — ask our pharmacist before using any lotion.

The Takeaway

Head lice are common, harmless and treatable. Check with a proper lice comb, confirm you've found a live louse, then choose wet combing or a pharmacy treatment and follow the timing carefully. Weekly checks during term time are the best way to catch them early. For more tips on keeping children healthy this term, read our back-to-school health guide.

Find lice combs and lice treatments in our hair care range at Avicen Online, with free delivery across Oman on orders above OMR 10. Our pharmacists are happy to help you choose the right product for your child's age.

This article is for general information and does not replace advice from your doctor or pharmacist. Always read the product leaflet before use.