Combine ingredients and apply all over the hair. Massage well, wrap head in a towel and leave for 1 hour. Comb through, and then shampoo and rinse the hair.
The reproductive cycle of lice is about a week, so as a precaution, the treatment should be repeated every 3 days for 2 weeks to remove all the nits.
The laundry should be washed in hot water (as hot as possible but at least 60 °C) because the lice are resistant. It is useful to add a few drops of Neem Oil to the wash cycle too and if you want a more pleasant smell, you can add a few drops of Lavender Oil to the final rinse.
Preventive: add a few drops of this mixture to a gentle shampoo and use regularly.