How to remove lice from hair permanently? - Permanently removing lice from hair requires a comprehensive approach. Start by using an over-the-counter lice treatment shampoo or seek guidance from a healthcare professional. Follow the instructions carefully and repeat the treatment if necessary. Afterward, comb the hair with a fine-toothed lice comb to remove any remaining lice or nits. Wash all bedding, clothing, and accessories that may have come into contact with lice. Vacuum your home thoroughly, and consider informing close contacts to check for lice and take necessary precautions.