Staphisagria: When lice are found in pubic hair (i.e. in hair on private parts). It is also useful for head lice.
Lycopodium: Lice in skin; specific for skin lice. Breeding lice.
Psorinum: Lice in hair on head. If this fails, try Carbolic Acid.
Carbolic Acid: It is also an excellent remedy for lice.