O que fazer quando as picadas de mosquito dão muita comichão?

O que fazer quando as picadas de mosquito dão muita comichão?

11 Outubro, 2015 0 Por admin

Uma vez que quando somos picados o nosso organismo envia uma dose considerável de histaminas para a zona onde a picadela cortou os vasos sanguíneos (e é isso que dá a comichão, e não a picadela em si própria), os anti-histamínicos são a melhor solução, diz Rebecca Harringtonà Business Insider.

2006 Prof. Frank Hadley Collins, Dir., Cntr. for Global Health and Infectious Diseases, Univ. of Notre Dame This 2006 image depicted a female Aedes aegypti as she was obtaining a blood-meal from a human host through her fascicle, which had penetrated the host skin, and was red in color, reflecting the blood’s coloration through this tubular structure. In this case, what would normally be an unsuspecting host was actually the CDC’s biomedical photographer’s own hand, which he’d offered to the hungry mosquito so that she’d lite, and be photographed while feeding. As it fill with blood, the abdomen became distended, stretched the exterior exoskeletal surface, causing it to become transparent, and allowed the collecting blood to become visible as an enlarging intra-abdominal red mass. As the primary vector responsible for the transmission of the Flavivirus Dengue (DF), and Dengue hemorrhagic fever (DHF), the day-biting Aedes aegypti mosquito prefers to feed on its human hosts. Ae. aegypti also plays a major role as a vector for another Flavivirus, "Yellow fever". Frequently found in its tropical environs, the white banded markings on the tarsal segments of its jointed legs, though distinguishing it as Ae. aegypti, are similar to some other mosquito species. Also note the lyre-shaped, silvery-white markings on its thoracic region as well, which is also a determining morphologic identifying characteristic.

“Se a comichão for demasiado forte para não conseguir deixar de coçar, use um creme ou gel anti-histamínico na zona [afetada], ou tome um comprimido anti-histamínico”, sugere a especialista.

Rebecca Harrington lembra também a hipótese de tomar os comprimidos como precaução, se vai estar numa zona de mosquitos.

Ainda assim um texto da Science Alert lembra que há dúvidas sobre o nível de eficácia dos anti-histamínicos nestas circunstâncias, citando um estudo de 2012, publicado na revista “Drug and Therapeutics Bulletin”.

 

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