Treatment of head lice in school children with 1% gamma benzene Hexachloride

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Weerayutt Daenseekaew
Vichit Pipitgool
Jeerapa Khempila
Kunya Jirarattanaphochai

Abstract

This study was conducted to estimate the prevalence of head lice in primary school children in Chiangyuen district and to compare the efficacy of a 3 hour versus a 12 hour application of 1% gamma benzene hexachloride (1% lindane).  Two schools were selected at random.  Children who were infested with head lice received a 12 hour application of 1% lindane in the first school, while those in the second group received a 3 hour application.  While none of the boys examined were infested, there were 39 (41.1%) and 41 (44.1%) female children with pediculosis capitis in two schools, respectively.  Thirty-seven out of 38 and 23 out of 41 infections were cured when the drug was applied for 12 and 3 hours, respectively.  This study showed that there is still a high prevalence of pediculosis in female school children and that 3 hour applications of lindane are less effective (P < 0.05) in curing head lice infestations than 12 hour applications.

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