Head Lice Home Remedy
The Best Home Remedies For Head Lice
Discover The Best All Natural, Inexpensive Home Remedies For Treating and Preventing Head Lice No Matter How Severe The Case.
PATHOPHYSIOLOGY Head lice feed off human blood and therefore remain close to the scalp. When the louse lays its eggs, the ova, or nits, are cemented to the hair shaft. The ova hatch within 7 days. The ova encasement remains attached to the hair shaft and grows out with the hair. By the time the nits are a distance of 1 cm or more away from scalp, they have probably hatched.
Accurate diagnosis is essential for developing an appropriate treatment strategy. Treatment should only be given if living lice are found. Too often children are exposed to insecticides unnecessarily because a parent finds a few empty louse eggshells in the hair. However, if a child has never had head lice before, an infection may run for several weeks before it is discovered by chance, simply because there is no overt sign of the infestation.12 Prescribers should, therefore, always ask for evidence of active infection, in the form of a louse stuck to a piece of paper, before deciding on treatment.
Scabies and lice preparations are useful in patients with possible infestation. In scabies infestations, the rash itself may resemble other dermatologic syndromes microscopic analysis will confirm the diagnosis. The donor site for skin specimen selection is very important. The best sites include burrows (10-mm elongated papule with a pustule or vesicle) and papules located on the fingers, wrists, and elbows. Within the vesicle or pustule, a small black dot is noted, which is the mite. The point of the scalpel is scraped across the lesion while holding the skin taut the mite is then removed. A single drop of mineral oil may be applied to the blade to ensure that the scrapings adhere to the instrument. The material is then placed on the microscope slide with an additional drop of mineral oil gentle pressure on the coverslip will flatten thick specimens. Using low power, the slide is scanned for presence of the mite, eggs, or feces. Mites are eight-legged creatures that are easily...
Pediculosis is a dermal infestation caused by a parasitic insect (lice). Lice are sucking insects belonging to the family Pediculidae. Infestations in various body regions (e.g., head, thorax, and groin) are caused by the head louse (Pediculus humanus capitis), the body louse (Pediculus humanus corporis), and the crab louse (Phthirus pubis). There are three stages in the life cycle of the louse the nit, the nymph, and the adult. Nits are louse eggs found firmly attached to hair shafts and take about 1 week to hatch. Nymphs mature to adults in 7 days and survive by feeding on human blood. Adult lice are about the size of a sesame seed and can live up to 30 days on an infested individual. Adult forms also feed on blood and may survive up to 2 days on inanimate objects.
As with head lice, the main complaint with pubic lice is itching, which may vary in intensity. Pubic hair of the groin is most commonly infested, but body hair and eyelashes may be affected as well. Close inspection reveals the lice and nits ( Fig, 2.4,2.-4.). Treatment involves the same medications as for head lice, listed above. Permethrin (Nix) is the preferred initial therapy and should be applied to the affected area for 10 min and then rinsed. Eyelash infestations should be treated by manually removing as many lice and nits as possible and then applying petrolatum to the lashes two to three times a day for 10 days.
Body lice concentrate about the waist, shoulders, axillae, and neck. The lice and their eggs often can be found in the seams of clothing. The lesions produced from bites of these arthropods begin as small, noninflammatory red spots that quickly become papular wheals. They are so intensely pruritic that their linear scratch marks are diagnostically suggestive of infestation. The white ova of head lice can be mistaken for dandruff, but unlike dandruff, they cannot be brushed out because they are glued to the hair itself ( nits ).