No jokes! An old lady told me that when I wash my hair and the kids hair, to add four drops of lavender oil to the shampoo on my head... tried it last night on me and dd, the lice pretty much were jumping off her hair! My sd tried it as well and agreed that the lice where running from the smell. Of course you do need to comb with special comb too. Had my head checked and there are no lice or nits. Will keep adding lavender oil every time i wash my hair from now on.
Thats my advice - use it or not, your choice...