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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: ...

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 ...

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...

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...

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...

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...

In an oral food challenge, small increment amounts of food are fed to the patient over a period of a few hours to determine if a reaction occurs. Due to the possibility of a severe reaction, it must b...

Allergy When you cannot avoid allergens, there are many medications that can help control allergy symptoms. Decongestants and antihistamines are the most common allergy medications. They help to reduc...

Allergy immunotherapy is the medical term for allergy shots, which are an effective treatment to help you become less allergic. The types of immunotherapy are: Conventional — Allergy shots ...

Allergy shots (also called subcutaneous immunotherapy or SCIT) are one of the best treatments available for your allergies and asthma. It is one of the few disease-modifying therapies available in med...