Head lice are most commonly found on children.
According to the National Institutes of Health, tea tree oil has been used to remedy a wide range of ailments, from athlete's foot to acne, ringworm to fungal infections. Tea tree oil has not been proven to eradicate head lice, but its properties have been proven to kill bacteria and infections and to reduce allergic skin reactions. The Centers for Disease Control recommends using a combination of over-the-counter or prescription medication with a nit comb to treat a head lice infestation, but you can also try alternative methods such as using tea tree oil.