You have been missing their eggs. A successful way of ridding the head of lice and their eggs without poisoning yourself with dangerous pesticides and hydrocarbons is as follows: Lather hair with a coconut-oil castile soap and add a few drops of tea tree oil and neem oil to the lathered hair. Then rinse and rewash with this same mixture, After this do not rinse, but wrap a towel around the head and wait for 30 min. Comb with a nit-removing comb, strand by strand, until all nits are removed then Wash and rinse the hair.
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