Lone star tick bites can cause alpha-gal syndrome, a severe red meat allergy that's being tracked across Pennsylvania.

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 ...

Right now, there's no cure. But there are treatments.

At one time or another, you've probably come across someone who is lactose intolerant and might experience some unpleasant gut symptoms if they have dairy. Maybe it's you—food intolerances are ...

Hours after savoring that perfectly grilled steak on a beautiful summer evening, your body turns traitor, declaring war on the very meal you just enjoyed. You begin to feel excruciating itchiness, ...

Get inspired by a weekly roundup on living well, made simple. Sign up for CNN’s Life, But Better newsletter for information and tools designed to improve your well-being. The arrival of spring is ...

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 ...

What if instead of temporarily relieving your allergies with medication, you could train your immune system to stop overreacting to your allergens altogether? That’s the idea behind allergy ...

Many people believe they have a penicillin allergy, but up to 90% are not actually allergic. Side effects like nausea are often mistaken for a true allergic reaction. An allergist can perform tests to ...

For many families with food allergies, flying is not just inconvenient. It is psychologically exhausting. Patients often ...

Making these 7 allergy medication mistakes could be why your sniffles never fully go away. Here's what to fix. The post 7 Allergy Medication Mistakes That Are Making Your Sniffles Worse appeared first ...

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 ...