Sorry for the delay but I'm back, with the recipe, hurrah! It comes from a book by Maggie Tisserand (famous name essential oil supplier) called 'Aromatherapy for Women' & is repeated in my book called 'The Complete Book of Herbs' by Lesley Bremness.
This is the recipe of essential oils which eliminates lice & leaves the hair lustrous & shining.
25 drops of rosemary oil.
25 drops of lavender oil.
13 drops of geranium (pelargonium) oil.
12 drops of eucalyptus oil.
in 3 fl.oz (75 ml) vegetable oil, i.e. olive oil.
Divide hair into small sections & saturate down to the roots. Pile hair on top of head & wrap plastic around the head & behind the ears to stop the oils from evaporating - careful, don't let the little darlings suffocate! Leave on for 2 hours.
Remove plastic, add shampoo & rub in well, rinse thoroughly.
Now the instructions say 'comb through with a fine nit comb' but as the lice are dead this is only a cosmetic step, so I think you can safely miss it out.
Repeat three days later or every 3 days as she is constantly being re-infected.
Also, ask the school/s to send a letter home to every parent/ saying that there is a headlice problem & everyone should treat with - add the name of the locally suggested product is. Add that low income families get it on free prescription or (cheap) nit comb wet hair, using loads of cheap conditioner, daily for about 10-14 days. This is best sent the week before a holiday so everyone can treat over the holiday & hopefully all return to school lice free. Especially improtant for families who have children at different (schools.
what ever happened to 'Nitty Nora the bug explorer!'? lol - x
By the way 'kerosene' is what we call 'parraffin' & used to be used in greenhouse heaters, some people also used it for heating their home but it was quite smelly & dangerous & has fallen out of widespread use in favour of calor gas & thermostatically