The best thing to do is read directions of each oil carefully and always apply and use with great care. Some studies have shown that ingredients in plant oils such as rosemary oil, citronella oil, eucalyptus oil, tea tree oil and lemon grass oil may work to repel lice, which means they can help prevent an infestation.
Morning Routine Magic: Easy and Natural Lice Prevention with Tea Tree Oil. that it (in addition to other essential oils) has been effective for families for years,
Prevent lice naturally by using this essential oil Lice Repellent Spray!. hair when it comes to lice prevention; the lice have a harder time clinging to dirtier hair.