Lice that time again

I just googled for a recipe and found this...

To prevent lice using an herbal, natural method, try using a tea tree oil spray. In a plastic spray bottle, mix 8 oz (236ml) of water with approximately 12 drops of tea tree oil. You can find the oil in any health food store. For a pleasant smell, add a few drops of rosemary or lavender essential oils. You can also find these in a health food store. Misting this mixture into your hair while combing through will help keep lice away.
Research shows tea tree oil attacks mature lice and dislodges them from the scalp, resulting in a high mortality rate after the first application (see Reference 2).
Read more: Herb Oil Natural Spray on to Prevent Lice | eHow.com http://www.ehow.com/way_5607561_herb-natural-spray-prevent-lice.html#ixzz1EZXLPCaO