When should I contact my doctor about sand flea bites? If you notice any bumps, redness or irritation on your skin, talk to a doctor. It's probably a mild rash, allergy or insect bite that will clear up in a few days or weeks.
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You probably won't notice when the female sand flea first enters your skin. Once it burrows into your skin, you may see a white circle that looks like a ring or halo with a black dot in the center. Over time, the black dot grows as the sand flea gorges on blood and gets bigger with eggs.
Not all sand fleas will bite and feed on humans, but those that do can cause painful, itchy bites. They hop through the sand much like the common flea, eventually landing on human skin and inflicting an uncomfortable bite.
Can fleas live in your bedding? Fleas can live in beds for about one to two weeks, and they like to burrow under sheets. Fleas need blood to survive, though, so they won't stay in one place for too long if there is no food source.