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Lapidary pediculosis
Last reviewed: 23.04.2024
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Late pediculosis is caused by a louse, which is located in the seams of clothing and causes damage to the skin in the form of papules, hyperemic spots or blisters with a bloody crust in the center.
Causes and pathogenesis of lynx pediculosis
The louse (pediculus humanus corporis or pediculus vestimentorum) is 3-4.5 mm long, that is, somewhat larger than the head one, in addition, the segments of the posterior part of the trunk are not so strongly pointed. Both species are actually subspecies, which can interbreed. Louse lice are rarely found under normal conditions of life. Usually they are common among people without a specific place of residence, in times of need and wars, are often found together with head and pubic lice. The louse is not lodged on the body, but in the adjacent clothing. The nits are located in the form of rosaries in the seams of clothing. The louse reproduces very quickly.
[Symptoms of lice
The bite initially goes unnoticed, the secret of the saliva of the lice leads to redness, blisters and nodules with very strong itching. In the places of bites are hyperemic spots, papules, small blisters, in the center of which there is a hemorrhagic crust. The skin is soon covered with dashed effects of brushing, which is often re-iteriated for a second time. The resulting "vagant skin" (cutis vagantium) has in addition numerous bright scars with the surrounding hyper and depigmentation. This picture as a whole is quite typical.
Louse lice suffer rickettsiosis, typhus, typhus. Volyn (trench or five-day) fever is caused by rickettsia (R. Quintana), which reproduce in the intestine of lice and are excreted with the products of their vital activity. Lice of the genus Pediculus are the source of human infection with epidemic typhus, the cause of which is also rickettsia prowaceki. Recurrent typhus is caused by spirocheta (Spirochaeta recurrens), which gets into the stomach of the insect with blood and is quickly evacuated from it. Infection of the patient occurs on the sixth day after the insect gets on the skin, when it is crushed and rubbed the spirochetes into damaged covers, wounds, scratching.
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Treatment of pediculitis
The underwear is boiled or disinfected. If necessary, contact insecticides can be applied in the form of a spray. The use of powder of "Yakutia" is justified prophylactically. Treatment of skin manifestations is carried out according to general therapeutic rules, depending on the relevance and secondary infection of eczematous manifestations.