What to Know About Head Lice

They hide from the light. They feed on your blood. No, they're not the villains in the latest vampire flick—they're head lice. These tiny creatures, about the size of a sesame seed, don't cause lasting damage or carry any diseases. Still, most of us would rather skip an itchy, annoying infestation.

Medically Reviewed By: Williams, Robert, MD | Last Review Date: Jun 7, 2012

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Learning About Lice

5 Steps to Combing for Head Lice

Combing for head lice is an important part of controlling head lice. Learn how to do a head lice comb-through correctly.

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