Lice Shampoo

More information about Lice Shampoo

Head lice are insects that can attach themselves to human hair on the head, eyebrows and eyelashes. They lay their eggs, called nits, at the base of the hair on the scalp. Head lice can cause symptoms like itching or tickling on the scalp and sores caused by scratching. While seeing head lice on yourself or your child can be alarming, there are treatment options available to help address the problem. Over-the-counter lice shampoos are available with different active ingredients and in different formulations for purchase in store and online at Walgreens.

Lice shampoo vs. regular shampoo

Lice shampoo is different from regular shampoo because it contains certain ingredients designed to kill lice, such as piperonyl butoxide and pyrethrum. Lice shampoos aren’t meant to be used on the body and should only be applied to the head. The product should then be rinsed off thoroughly in a sink or with a spray hose. Lice shampoo should not be used while taking a full body shower or bath. Be sure to follow the directions on the package carefully. Do not use more than one kind of lice shampoo at the same time and don’t use more product than recommended. Ask a pharmacist at Walgreens for help or check with your healthcare provider to find the best lice shampoo for you.

How does lice shampoo work?

Lice shampoo typically works by using active ingredients, such as piperonyl butoxide and pyrethrum, to kill lice on the scalp. It’s important to note that lice shampoo may not kill the eggs (nits), and the shampoo treatment may need to be used more than once in combination with combing to remove eggs from the scalp. Lice shampoo usually contains package instructions about how to use the product correctly and what timing schedule to follow. If you use a lice shampoo product on yourself or your child and don’t notice any difference in the number and activity of lice 8 to 12 hours later, the treatment may not be working. Consult with your healthcare provider if lice shampoo doesn’t seem to be effective for you.

How long should I leave lice shampoo in my hair?

Most lice shampoos are left in the hair for 10 minutes. However, it’s important to check the label carefully as instructions may vary by product type. Do not leave the product on longer than recommended on the label. Lice shampoo should not be used on the body, and it should only be applied to the head. If you still see live lice after using a lice shampoo, the product may not be working. Consult with your healthcare provider about next steps, as prescription lice treatment products are available for some people who do not get results from over-the-counter (OTC) solutions.

How can I prevent lice?

Head lice are usually spread through head-to-head contact, such as contact during children’s play or activities. They can also spread by sharing clothing, combs, brushes and towels. To help prevent lice, avoid head-to-head contact and do not share personal items. Do not lay on pillows, beds, couches or carpet that has been used by someone with lice. If you are in close contact or live with someone with lice, be sure to machine wash clothes, bed linens and other items they may have used. There is some limited evidence that natural substances such as cinnamon oil and citronella may help prevent head lice, and there are natural shampoo products available at Walgreens with these ingredients. However, more research is needed to determine how effective these substances are in preventing lice. Talk with your healthcare provider if you are concerned about lice, and ask a Walgreens pharmacist for help choosing the best lice shampoo for you.