Head lice affect more than 100 million people worldwide annually. Permethrin (1% formulation) is efficacious but resistance is emerging. Malathion (0.5% formulation) is an alternative, but ...

The all-in-one shampoo and lice ... permethrin or pyrethrin, which can kill the eggs. Another option is to use home remedies such as vinegar, mayonnaise, or tea tree oil. What is the most ...