Asthma is a common lung disorder characterized by episodes of coughing, wheezing and shortness of breath. Asthma is caused by inflammation of the lining of the small airways in the lungs (bronchioles)...
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 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...
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...
Severe stinging insect allergy affects over 9.5 million Americans including 3 percent of adults and up to 1 percent of children. There are 40 to 100 deaths in the U.S. each year, and that number has n...
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...