The "hygiene hypothesis" suggests exposure to diverse types of microbes may protect against developing diseases caused by allergens, but a new study in mice reveals that adults' exposure to diverse ...

Seasonal allergies happen when your body's immune system overreacts to ordinarily harmless things in the environment, like pollen. This overreaction can cause symptoms such as sneezing, a runny nose, ...

Most pollen that causes allergy problems is so small that it is invisible to the human eye. Learn all about pollen, the ...

Allergy sufferers may one day be able to erase the source of their congestion, itchy skin and swollen lips and throat thanks to two studies that have uncovered elusive immune cells that maintain ...

TikTok allergist Dr. Zachary Rubin encourages people to start preparing for spring early: "Pollen's about to mess with you" ...

Add Yahoo as a preferred source to see more of our stories on Google. Ah, spring. No matter where you live, it’s the season of renewal, sunshine, milder weather — and plenty of allergies. Those ...

What Is a Peanut Allergy? You have a peanut allergy when your body’s immune system overreacts to peanuts. Normally, your immune system helps protect you from germs and other harmful substances. But if ...

Imagine a nurse, let’s call her Jill, who faces multiple scrub-ins everyday as part of her operating room role. She struggles with a rash on her hands and wrists that just won’t go away, causing both ...

Study finds association between skin allergies and four cancers. July 12, 2011— -- A new study suggests there could be a link between skin allergies and the risk of developing certain cancers. In ...

Allergic conjunctivitis is not contagious, but other types of conjunctivitis, such as viral or bacterial, are. People can take steps to prevent transmission of the contagious types. These steps ...