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 ...

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 ...

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 ...

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, ...

People have shared their experiences of coming incredibly close to the rainbow bridge, all thanks to someone purposefully ...

Medically reviewed by Corinne Savides Happel, MD Key Takeaways Food allergies involve the immune system's production of ...

What Is a Sesame Allergy? A sesame allergy is a food allergy to sesame seeds or sesame oil, which come from the sesame plant. When you have this allergy, your immune system reacts to sesame as though ...

Kate Lecker is a 43-year-old regional business director for a pharmaceutical company. She has been using insulin for 40 years to treat her type 1 diabetes. She started having severe allergic reactions ...

Some types of allergies can cause voice loss or laryngitis. Laryngitis typically occurs due to overuse of the voice, acid reflux, colds, flu, or infection. Laryngitis is irritation or inflammation of ...

An allergy involves a mild to life threatening immune response to an external substance. A sensitivity, on the other hand, is typically a milder reaction associated with difficulty digesting food. An ...