The stuffy nose. Eyes so watery or itchy you can't see straight. And that's just the start. Here's what you should know about ...

There were times when I would knowingly buy and eat something with wheat in it without any thought for the consequences.

Food allergies occur when your body reacts to a food particle as if it were harmful. Even when you’re aware of a food allergy ...

Many people say their seasonal allergies are hitting earlier and harder. We talk with a professor who studied how climate change has affected plant biology for over 30 years.

ABC News medical correspondent Dr. Darien Sutton answers your health questions and shares tips for avoiding germs at the gym.

Epinephrine temporarily reverses the symptoms of a severe allergic reaction. A person with a severe allergy should carry an EpiPen with them at all times. Anyone experiencing one or more symptoms ...

Kiwi allergies can cause mild symptoms at first, but they can also get worse over time. Reactions may start with an itchy, tingly mouth, but later on cause stomach pains, rash, or trouble breathing.

People may experience itching around the vulva or inside the vagina. The specific symptoms and treatments will depend on the cause. Scented products are more likely to cause irritation.

If you have allergies, you know how frustrating it is when symptoms flare up indoors. Even when your home looks spotless, dust, pollen and pet dander linger in the air, making it hard to breathe ...

(Randomized controlled trials include a placebo group, for comparison, and can provide direct evidence that an intervention relieves specific symptoms.) Related: What causes allergies ...

Having a food allergy or sensitivity could further weaken the skin barrier, making symptoms of eczema worse. Eczema related to diet is more common in babies and young children with moderate to ...