Oral ivermectin versus malathion lotion for difficult-to-treat head lice.

<h4>Background</h4>Head-lice infestation is prevalent worldwide, especially in children 3 to 11 years old. Topical insecticides (i.e., pyrethroids and malathion) used as a lotion, applied twice at an interval of 7 to 11 days, are typically used for treatment. Resistance of lice to insecticides, part... View More