The head lice combs are more effective than special shampoo
The head lice combs are more effective than special shampoo
Combs' narrow spikes are more effective than louse shampoos to kill lice, as has just unveiled in a British study.
Washing hair and, while still wet and full of smoothing cream, repeatedly passing a special fine-toothed comb from the root to the base is the strategy proposed by the new research, published in the edition Online from the British Medical Journal. It is necessary to perform this procedure four times every three days.
The head lice comb used in the study was four times more effective than shampoos available to eliminate lice. The truth is that for the moment there is no ideal "perfect" treatment against these parasites, which is a growing problem. These insects have developed a resistance to many chemical treatments. It seems that this "...failure of the treatment is probably an important factor in the increased incidence of head lice," the authors wrote on the report.
Moreover, "although the current insecticides against lice are considered safe for occasional use can pose a greater risk of toxicity if used frequently," they say.
The Study
These experts, from the London School of Hygiene and Tropical Medicine (United Kingdom) decided to evaluate the effectiveness of a more innocuous, such as the head lice combs. This has been studied more than a hundred kids between two and 15 years who had head lice. As the families of 56 of these kids took home a nit/head lice comb (so-called "Bug Buster" kit), the other 70 were given a anti-parasitic shampoo, which were used in one wash.
Further evaluation revealed that 57% of the volunteers of the first group did not have lice, while only 13% of users of anti-parasitic shampoo had got rid of insects. This means that "for every two of three people using the kit instead of the shampoo will be cured," the researchers calculated.
"Some may consider the cure rate of only 57% we detected with the Bug Buster kit is still unacceptable and may not provide an accurate treatment result. Currently no products available that provide fully effective head lice control. And there is an urgent need to reevaluate the effectiveness of these chemical shampoos. "
The limited effectiveness of the shampoo also calls for reflection. Except in one case, where permethrin (one of the shampoos used in the study) had failed and was found that the parasites that had infested the child were resistant to this product. "We believe that the status of licensed insecticide treatments needs to be evaluated, as they could expose users to repeat applications without any significant reduction in infections," say the researchers.
Importance of Head Lice Combs
Against this background, the nit "seems to provide a viable alternative to insecticide treatments," say these experts. However, not all devices will prove equally effective.
A investigation made in Wales for five years with the anti-parasitic shampoos had not yielded positive results, so the new investigation authors speculate that "it seems likely that the rate of higher recoveries in our study is a consequence of improvements in the comb, as this was the only change. If so, indicates that the success of using a fine tooth comb depends on the choice of their comb. "
Moreover, the agency Community Hygiene Concern, which is the creator of the Bug Buster kit, cautions that metal combs are less desirable than plastic nit.
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