How can I kill lice and eggs effectivley?

Treatment of lice. 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 pediculicide tx may be needed. Natural.
Malathione shampoo. Some head lice has developed resistance to permethrine and lindane.