NICE CKS—head lice

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This summary has been developed for use by community pharmacists under our Guidelines for Pharmacy title and therefore only covers the information relevant to this setting. Areas covered include: treatment and management, advantages and disadvantages of treatment options, information and advice for those with the condition. Please refer to the ...

Head lice (Pediculus humanus capitis) are parasitic insects that infest the hairs of the human head and feed on blood from the scalp. Head lice infestation is known as pediculosis capitis. The severity of infestation varies from a few lice (less than 10) to more than 1000 in severe cases, but a typical infestation might have about 30 lice per head. If left untreated, head lice infestation may persist for long periods. This summary covers how to manage patients with head lice, including a number of treatment options and additional information.

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