November 4, 2013 Bacteria aren't all bad for you. In fact, they may well be the reason you're healthy. Scientists are just starting to figure out the role that the microorganisms that live on the human body play in human health. We dive in to take a microbe's eye view of the hidden world of the human microbiome.
May 6, 2013 Instead of rinsing off the pacifier when it falls out of your baby's mouth, new research suggests that sucking it clean for them could help keep them from developing eczema and asthma. Researchers say the harmless bacteria in parents' saliva works by stimulating the babies' immune system.
March 27, 2013 Drops under the tongue to treat allergies sounds a lot nicer than allergy shots. A new review in JAMA says they're moderately effective, and relatively safe. But they're also not FDA-approved. Still, doctors, including an author of the study, are prescribing them off-label.
March 25, 2013 Henna tattoos have become a popular beach souvenir and tween fashion accessory. But some are made not with the henna plant, but with a chemical that can cause a painful allergic reaction, the Food and Drug Administration warns.
March 4, 2013 Fire ant stings are a painful fact of life in the South. Sometimes the stings can cause fatal allergic reactions. Yet many people who know they're allergic aren't getting allergy shots that could protect them.
June 11, 2012 Soaring rates of allergies among children in recent decades have researchers puzzled. One theory says we're too clean, so kids' immune systems never learn how to deal with foreign invaders — even the harmless ones. Researchers now hope they'll find some answers by studying kids on farms.
March 23, 2012 The so-called hygiene hypothesis is right. Scientists say they've figured out how exposure to germs in infancy reduces the risk of allergies and other immune system problems.
November 8, 2011 Allergists see an uptick in problems reported by people sensitive to chemicals in products used to freshen up the home. The symptoms can be mistaken for allergies, but the treatment is different.