Is alcohol free listerine good for lice?

Nope: It's great for your teeth and gums, but not for lice. Use a product specifically formulated for a lice infestation.

Listerine is not a : Treatment for lice. Tx requires accurate identification of nits ; / or lice. A pediculicide is usually used- otc like nix (permethrin) or rid or prescription meds like lindane or malathion. Work carefully through hair ; remove individual nits. Purchase a special lice nit comb to aid you. Check for nits ; remove as seen over the next 7 to 10 days. If there are nits after 7 to 10 days – a 2nd tx may be needed.