Heat and insect bites are two terms virtually inseparable. Although everyone is exposed to the bites, the greater or lesser predisposition to be victims of insects seems to be determined by genes, as demonstrated by a study conducted at the School of Hygiene and Tropical London Medicine and whose results were published end of April in the journal Plos One.
The objective of this research was to analyze the mechanism behind the fact that some people are more appetizing to mosquitoes. The authors concluded that genes are what make our scent attracts these insects or, on the contrary, away (by producing natural repellent by the body).
According to experts of Central London, this finding would allow better protection and could be the basis for, in the future, develop a product that stimulates the production of organic repellents.
But until that idea materializes no choice but to take other steps to protect themselves from these insects whose stings and bites can cause side effects, explains Teresa Alfaya, coordinator of the Committee of Allergy Hymenoptera of the Spanish Society of Allergology and Clinical immunology (SEAIC) can be of various types: “the most common are the mosquitoes, which can cause extensive local reactions or papular urticaria, especially in children, with some frequency.
As for the Hymenoptera (bees and wasps) can lead to local allergic reactions up to 15 percent of the rural population of our country and widespread (anaphylaxis) in 2.3 percent of cases. “
At the pharmacy the most frequent query pitting is produced by mosquitoes, says Merce Barau, vocal Pharmaceutical Care COF of Barcelona. Indeed, José Manuel Miquel, member of Dermopharmacy the COF of Alicante, warns that, in addition to the native mosquito of the Spanish regions, has reached the tiger, “which has a different biology and a risk to local mosquitoes mosquito.
So, usually it is itching for the day, flying at low altitude (the most frequent bites are located in the legs) without making so much noise. ” “Faced with insect bites should always remember: diffusers use insecticides and insect repellents and avoiding areas and situations where they may be present,” said Alfaya.
About repellents, Barau notes that the offer is varied. Thus, there are chemical and natural. In the first the most active are used DEET (N-diethyl-3-methylbenzamide) at concentrations between 10 and 40 percent, and permethrin, routinely used as a insecticide applied on clothing or fabrics.
On those natural extracts, José Manuel Miquel notes that are used every day more, as formulated with species of geraniums, eucalyptus, lavender or chrysanthemums. “Another possibility is the use of homeopathic extracts bee venom, nettles and calendula creams,” the voice of Alicante.
An important tip for use: ” Being preventive, repellents must be used when the risk of pitting is greater : at sunset on field trips, at night and in outdoor areas , ” he adds. And electrical devices and ultrasound? Are they effective? According to Jose Manuel Miquel, “they have to be connected all the time to really work.”