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Trombiculosis is a
rash A rash is a change of the skin that affects its color, appearance, or texture. A rash may be localized in one part of the body, or affect all the skin. Rashes may cause the skin to change color, itch, become warm, bumpy, chapped, dry, cracke ...
caused by trombiculid mites, especially those of the genus '' Trombicula'' (chiggers). The rash is also often known as chigger bites. __NOTOC__ Chiggers are commonly found on the tip of blades of grasses to catch a host, so keeping grass short, and removing brush and wood debris where potential mite hosts may live, can limit their impact on an area. Sunlight that penetrates the grass will make the lawn drier and make it less favorable for chigger survival. Chiggers seem to affect warm covered areas of the body more than drier areas. Thus, the bites are often clustered behind the knees, or beneath tight undergarments such as socks, underwear, or brassieres. Areas higher in the body (chest, back, waist-band, and under-arms) are affected more easily in small children than in adults, since children are shorter and are more likely than adults to come in contact with low-lying vegetation and dry grass where chiggers thrive. An exceptional case has been described in the eye,Parcell, B. J., Sharpe, G., Jones, B. & Alexander, C. L. 2013: Conjunctivitis induced by a red bodied mite, ''Neotrombicula autumnalis''. Parasite, 20, 25. producing
conjunctivitis Conjunctivitis, also known as pink eye or Madras eye, is inflammation of the conjunctiva, the thin, clear layer that covers the white surface of the eye and the inner eyelid. It makes the eye appear pink or reddish. Pain, burning, scratchiness ...
. Application of repellent to the shoes, lower trousers and skin is also useful. Because they are found in grass, staying on trails, roads, or paths can prevent contact. Dusting sulfur is used commercially for mite control and can be used to control chiggers in yards. The dusting of shoes, socks and trouser legs with sulfur can be highly effective in repelling chiggers. Another good strategy is to recognize the chigger habitat to avoid exposure in the first place. Chiggers in North America thrive late in summer, in dry tall grasses and other thick, unshaded vegetation. Mite repellents and or Acaricide containing one of the following active ingredients are recommended:
Permethrin Permethrin is a medication and an insecticide. As a medication, it is used to treat scabies and lice. It is applied to the skin as a cream or lotion. As an insecticide, it can be sprayed onto outer clothing or mosquito nets to kill the insects ...
,
DEET ''N'',''N''-Diethyl-''meta''-toluamide, also called diethyltoluamide or DEET (, from DET, the initials of di- + ethyl + toluamide), is the oldest, one of the most effective, and most common active ingredients in commercial insect repellents. ...
,
catnip ''Nepeta cataria'', commonly known as catnip and catmint, is a species of the genus ''Nepeta'' in the mint family, native plant, native to southern and eastern Europe, northern parts of the Middle East, and Central Asia. It is widely naturalis ...
oil extract (
nepetalactone Nepetalactone is a name for multiple iridoid Structural analog, analog stereoisomers. Nepetalactones are produced by ''Nepeta cataria'' (catnip) and many other plants belonging to the genus ''Nepeta'', in which they protect these plants from herbiv ...
),
citronella oil Citronella oilCitronella oil is an essential oil obtained from the leaves and stems of different species of '' Cymbopogon'' (lemongrass). The oil is used extensively as a source of perfumery chemicals such as citronellal, citronellol, and geran ...
or
eucalyptus oil Eucalyptus oil is the generic name for distilled oil from the leaves of ''Eucalyptus'', a genus of the plant family Myrtaceae, mostly native to Australia but cultivated worldwide. Eucalyptus oil has a history of wide application, as a pharmace ...
extract. Chiggers can also be treated using common household
vinegar Vinegar () is an aqueous solution of diluted acetic acid and trace compounds that may include flavorings. Vinegar typically contains from 5% to 18% acetic acid by volume. Usually, the acetic acid is produced by a double fermentation, converting ...
(5% acetic acid).


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{{Mite-related diseases and infestations Parasitic infestations, stings, and bites of the skin Arthropod infestations