Using TeaTree for head lice, but just beware...
After being infested with lice for 8 months, I have been at my wits end, as none of the poisonous permethrins and other active ingredients worked. I even watched the lice come alive again under a small magnifying glass after 30 minutes of being 'dead'...so much for that.
I went and bought a bottle of tea tree oil, and poured it neatly on to my head, massaged it in, and covered with plastic. Left it on 3 hours, rinsed and dead lice fell out, Combed, thought that was it.
Three day later the eggs hatched, so this product does not get rid of eggs, only live ones. I repeated the treatment just to be sure, about a week ago, and nope, still got eggs hatching, and a burned scalp as tea tree has damaged the skin on my scalp. I am now considering shaving off all my lovely long blonde hair.
So just beware that it kills live ones but not the eggs. Oh, and I didn't get re-infected as I have been completely careful about changing everything, washing hair brushes etc, and not putting my head next to anybody!