There are not other proven therapies to kill lice
and their eggs.
However, certain home remedies
are practical and often used by pediatricians. The best is smothering them, by coating the hair in a heavy layer of vegetable oil that is left on x 48 hours - cover with a shower cap. Also, always change clothing, linen and everything else in contact with infected head. Good luck!
Answer assisted by David Escobar, Medical Student