Allergies

Adults who get their first cat double their risk of cat allergy -- especially if the cat is allowed in the bedroom. But adults who had cats as kids are less likely to become allergic to new feline pets.

The largest study ever to track childhood food allergies in the U.S. shows that they may be more common and more dangerous than previously recognized.

Children who don't get enough vitamin D may be at increased risk of developing allergies, new research indicates.

First-born children may be more likely to develop certain types of allergies than their younger brothers or sisters, a study suggests.

A small new study suggests that children with severe milk allergies may be able to rapidly overcome their sensitivities with the help of a biologic drug that helps to quiet an overly aggressive immune response.

A new study shows Knoxville and a host of other Southern cities top the list of the worst places to live with spring allergies.

Many people skip seeing a doctor for allergy symptoms and misdiagnose themselves as having allergies when they actually have sinusitis, a survey shows.

Having a dog or cat at home during the first year of life may actually help prevent pet allergies later on.

New research suggests that people who develop itchy rashes when their skin comes into contact with certain metals or chemicals have a lower risk for certain cancers.

A new study suggests there may be little difference between dog breeds when it comes to shedding allergens.

African-American children in the U.S. have a higher rate of food allergies than children of other races, and new research suggests that both genetic and environmental factors may explain why.

A quick blast of carbon dioxide gas into the nose may ease some allergy symptoms better than a placebo, and the relief appears to last for about four hours, a new study shows.

Some people with cat allergies may also be allergic to pork and other meats due to a rare type of cross reactive allergy known as pork-cat syndrome.

You vacuum your house religiously to get rid of all the dust, dirt, and bacteria and make sure your indoor air is up to snuff. But new research suggests that some vacuum cleaners may actually be making things worse, not better.

In time for spring allergy season, the FDA today approved over-the-counter sale of Allegra, a best-selling antihistamine also sold under the generic name fexofenadine.

Comprehensive new guidelines on food allergies are out from the National Institute of Allergy and Infectious Diseases (NIAID).

Pediatricians play a key role in preventing and treating food-related allergic reactions among school-aged children, and can help implement plans concerning the way food allergies are managed in the school setting, according to a clinical report published by the American Academy of Pediatrics.

Many adults and children with nut allergies are unable to identify different types of tree nuts and peanuts, which could increase the risk of exposure and life-threatening allergic reactions

Do you have sinus problems? Here's how to make your home kinder to your sinuses.

WebMD talked to one of the nation's top allergy experts to learn the best ways to control and treat spring allergies this year.

4 tips to help you cope with spring allergy symptoms.

Allergists answer common allergy questions about allergy symptoms and treatment.

WebMD explains what happens to your skin when you develop an itch.

WebMD helps you determine whether your child has a common cold or a case of allergies. Learn the symptoms and how to distinguish the two.

If you’re an exerciser who loves the outdoors but suffers from allergies, WebMD has tips to help you through pollen season.