Bedbug Bites | Merck Manual Consumer Version

Bedbugs are tiny, wingless insects whose bites are usually painless but can cause itchy skin reactions. Bed bug bite marks appear on the skin sometime between a few hours to 10 days after being bitten. Bites that appear in a line usually indicate bedbug bites ("breakfast, lunch, and dinner").

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Picture of a bed bug bite:

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First published in 1899 as a small reference book for physicians and pharmacists, The Merck Manual grew in size and scope to become one of the world's most widely used comprehensive medical resources for professionals and consumers. As The Manual evolved, it continually expanded the reach and depth of its offerings to reflect the mission of providing the best medical information to a wide cross-section of users, including medical professionals and students, veterinarians and veterinary students, and consumers.

Merck Manual Consumer Version:
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