If malathion treatment isn't working, should I repeat it over and over?

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If you use malathion (Ovide) lotion and it doesn't seem to be killing head lice and their eggs after two treatments, do not use it again. This prescription medication is an insecticide and can be dangerous if you use too much of it. For persistent head lice, talk with your doctor or pharmacist. He or she should be able to suggest another treatment for head lice.

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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.