Sucking may be one of the most beneficial ways to clean a baby's dirty pacifier, a study found iStockphoto.com hide caption

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Parents' Saliva On Pacifiers Could Ward Off Baby's Allergies
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Otolaryngologist Sandra Lin uses under-the-tongue drops to treat patients with allergies at Johns Hopkins in Baltimore. Courtesy of Keith Weller/Johns Hopkins Medicine hide caption

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The sting of Solenopsis invicta, the red imported fire ant, is well known to many in the Southern United States, but immunotherapy is possible. Courtesy of Alex Wild hide caption

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Contact with animals and dirty environments may be one reason farm kids are less likely to get allergies, researchers say. iStockphoto.com hide caption

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To Sniff Out Childhood Allergies, Researchers Head To The Farm
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