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If you have an allergic disease, your body identifies some substances, called allergens, as harmful. These substances, which are harmless to most people, trigger allergic reactions within your immune ...

Allergy symptoms can make you look bad and feel worse, but you and your family don’t have to suffer. Knowing what triggers your allergy and asthma symptoms is the first step. But then what? Seek...

Self-treatment for allergies with over-the-counter medications may lead to unwanted side effects, such as drowsiness and fatigue. Some remedies may actually worsen the underlying condition. Untreated ...

Severe stinging insect allergy affects over 9.5 million Americans including 3% of adults and up to 1% of children. There are 40 to 100 deaths in the U.S. each year, and that number has not changed in ...

Your home, school and workplace contain causes of environmental allergies. These inhaled triggers can include dust, animal dander, feathers, mildew, pollen and mold spores. Other triggers include: ...

Food allergies are due to an immune system reaction that occurs soon after eating a certain food. They affect about 1 in 20 Americans with cases occurring at any age, but most commonly in babies and y...

If you develop a rash, hives or difficulty breathing after taking certain medications, you may have a drug allergy. While you may not experience allergic symptoms the first time you take a drug, your ...

Medication allergies can be difficult to diagnose. Some allergic reactions to drugs — particularly rashes, hives and asthma — can resemble certain diseases. An allergy to penicillin-type d...

In addition to assessing your detailed history about a prior allergic reaction to penicillin, allergists administer skin tests to determine if you are allergic to the medication. These tests, which a...

When you are allergic, your body is reacting to a particular substance that should not normally bother you. These substances are called allergens. Typical allergens include pollens, dust mites, animal...