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Pediculosis pubis (also known as "crabs" and "pubic lice") is an infestation by the pubic louse, Pthirus pubis, a wingless insect which feeds on blood and lays its eggs (nits) on mainly pubic hair. Less commonly, hair near the anus, armpit, beard, eyebrows, moustache, and eyelashes may be involved.
For a treatment with louse comb alone, it is recommended to comb the hair for an hour to an hour and a half (depending the length and type of the hair) daily or every second day for 14 days. Wetting the hair especially with water and shampoo or conditioner will facilitate the combing and the removal of lice, eggs and nits. [21] [22] [23] [24]
Other lice that infest humans are the body louse and the crab louse (aka pubic lice). The claws of these three species are adapted to attach to specific hair diameters. [18] Pubic lice are most often spread by sexual contact with an infested person. [19] Body lice can be found on clothing and they are not known to burrow into the skin. [20]
The crab louse or pubic louse (Pthirus pubis) is an insect that is an obligate ectoparasite of humans, feeding exclusively on blood. [2] The crab louse usually is found in the person's pubic hair . Although the louse cannot jump, it can also live in other areas of the body that are covered with coarse hair, such as the perianal area , the ...
Permethrin is a medication and an insecticide. [6] [7] As a medication, it is used to treat scabies and lice. [8]It is applied to the skin as a cream or lotion. [6] As an insecticide, it can be sprayed onto outer clothing or mosquito nets to kill the insects that touch them.
Head louse crawling on a hairbrush Phthiriasis in the head of a 6-year-old boy caused by phthiriasis pubis as confirmed by optical (c) and electron microscopy (d). [5] Head-lice infestation is most frequent on children aged 3–10 and their families. The CDC estimates that 6 to 12 million children aged 3 to 11 get lice every year. [6]
Lindane, also known as gamma-hexachlorocyclohexane (γ-HCH), gammaxene, Gammallin and benzene hexachloride (BHC), [3] is an organochlorine chemical and an isomer of hexachlorocyclohexane that has been used both as an agricultural insecticide and as a pharmaceutical treatment for lice and scabies.
Phenothrin, also called sumithrin and d-phenothrin, [2] is a synthetic pyrethroid that kills adult fleas and ticks.It has also been used to kill head lice in humans. d-Phenothrin is used as a component of aerosol insecticides for domestic use.