Mosquitoes are one of the undisputed protagonists of each summer. Depending on the year there are more or less, but they are always there and can be a headache for people more prone to bites. That is why it is very important to choose and use mosquito repellents well. In general terms, there are two kinds of repellents: conventional synthetic ones (chemicals, such as DEET or icaridin) and those of a more natural origin (such as citronella or citrodiol, among others). “The most effective against tiger mosquitoes is DEET, it is a chemical product and therefore it can have more adverse effects, but we must use these repellents depending on where we go and the diseases that exist”, as explained to Marta Alcalde, member of dermopharmacy and health products of the Col·legi de Farmacèutics of Barcelona. Read also Joaquim Elcacho There are essentially two kinds of repellents Getty Images/iStockphoto The most effective, then, are skin repellents, which confuse the mosquito and prevent it from getting close and biting us. You have to choose a product that is more or less natural and more or less powerful depending on what you need and prefer. What are the most effective repellents? Skin repellents that carry the chemical DEET or IR3535. They can be in the form of a spray, stick or gel. Also read What do we have to take into account about repellents? From the outset, we do not need to apply the strongest repellent if we do not go to countries with a high presence of mosquitoes: “In Catalonia, it depends on where we are, perhaps a repellent is enough not the most powerful. It is recommended to try the milder products first. Do mosquitoes riddle you every summer? Amazon How often do they have to be applied? DEET or IR3535 should be applied every 6 to 8 hours, and PMD and icaridin every 4 to 6 hours. Repellents that are more natural must be reapplied more often to be effective. “You have to keep in mind that the protections do not last all day,” says Mayor. Also read Martí Paola Another frequent question is whether repellents can be mixed with sunscreens, since they can alter the action and if this is the case, in what order they have to be applied. In general, it is recommended to apply the protector first and after about 30 minutes, the repellent. Other kinds of repellents are not as effectiveThe entomologist and mosquito expert Rosario Melero-Alcíbar explains that some repellents distort the smell around us and the ability of mosquitoes to perceive, such as citronella candles, bracelets, electric air fresheners or air fresheners. Smoke sticks for terraces. Also read La Vanguardia However, it emphasizes that they have a small radius of action: “If you are one meter from these elements, the mosquitoes will come to you. Outside you have to be very close and there have to be many around so that they really work”. Not all products work the same CSIC We can also opt for natural remedies to keep tiger mosquitoes away and prevent such annoying bites. Mireia Teixidó, specialist gardening technician, gave the Versió RAC1 an infallible recipe to repel them. And ultrasound devices? Electronic devices that emit ultrasound to repel mosquitoes are also sold. “There is no scientific evidence in this regard, despite the fact that they are widely used.” “What can work is plugs with a chemical product, which emit an essence that permeates the environment and is used to scare mosquitoes,” says Marta Alcalde.
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