What are the ingredients to make your own headlice treatment?

Get some Tea Tree oil from the pharmacist, put a good few drops in your normal shampoo then wash your hair with washing up liquid, rinse it out then use the shampoo with the Tea Tree oil and rinse it out again lastly put A LOT of conditioner on your hair wait 3 minutes then wash it off. You can also rub olive oil into your hair and scalp, leave it over night then wash it out in the morning, try and do this every 3-4 days until youre rid of them.