Body lice are tiny insects that live in clothing, bedding, and other fabrics. They feed on human blood and then return to the fabric to live and lay eggs. An infestation is generally associated ...

But as they multiply, you may start to notice the small itchy bites on your scalp or other skin areas, she says. In addition ...

Sea lice aren't lice at all ... The trouble comes when these babies get caught between your skin and your bathing suit, or even in your hair. About 4-24 hours later, you start to itch and sting.