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 ...

Allergic reactions are a serious condition many Americans face due to an abnormal immune response in the body that, in some cases, can result in death. An allergic reaction occurs when the immune ...

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 ...

Seasonal allergies can leave you feeling congested with itchy eyes or throat. Seasonal allergies are often caused by an outdoor irritant like pollen, mold, or weeds. You can often find relief from OTC ...

A penicillin allergy can cause symptoms such as hives, shortness of breath, and areas of swelling. In some cases, it may also lead to anaphylaxis, a life threatening condition that causes low blood ...

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 ...

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 ...

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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 ...

Living with allergies can be difficult. Symptoms can mess with your day-to-day life or, in some cases, be life-threatening. Even if your allergies only show up seasonally, symptoms can impact your ...

If you live in New Jersey and you suffer from allergies, it might be time to start stocking up on tissues and antihistamines. We could be in for a rough pollen season this year, according to ...

Researchers have identified an allergy pathway that, when blocked, unleashes antitumor immunity in mouse models of non-small cell lung cancer (NSCLC). And in an early parallel study in humans, ...