Abstract
The study aimed to know the effectiveness of the volatile oils of lavender and sagebrush plants in combating head lice in humans. It was clear through laboratory experiments that the two plants had a positive effect in killing adults from the parasite, especially when the treatment was done with the dishes covered to ensure the saturation of the ocean with steam. The killing rates were 100% during the first ten minutes when Treatment with a concentration of 15ppm for lavender plant and the first 15 minutes for sage plant at the same concentration. While a decrease in the effectiveness of volatile oils was observed when the lids were removed from the petri dishes during the treatment with the superiority of the volatile oil of sagebrush over the volatile oil extract of lavender, the duration did not exceed (4) hours in eliminating all parasites at concentrations (10,15ppm of sagebrush), while it increased The time required to kill all parasites is four hours in the case of treatment with the volatile oil extract of lavender plant and in the same concentrations as that of sage.
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