18 months old toddler head lice any suitable treatments?

put about 10 drops of Tea-Tree oil into a small glass of Olive Oil and mix well. massage this into the scalp and hair and use a fine comb to get rid of the lice. leave for about an hour before washing the hair. repeat the process every second day for a week. Should do the trick. don't forget to change her pillow case every night and boil wash the used ones