Dust mites are unseen bugs, about a quarter of millimeter long, and can cause allergies in children due to certain proteins in the waste they leave behind, according to The Children's Hospital at Westmead. FamilyDoctor.org explains that dust mites...
The University of Iowa Health Care defines an allergy as a reaction of the body's immune system to a substance that is not normal. The cause of these reactions is not known, however it is believed to be due to malfunctioning immune system. A...
Allergies develop when your immune system reacts to a foreign substance, which triggers the production of IgE antibodies in your body. These antibodies react with the foreign molecule and promote the release of histamine and other chemicals that...
You may not expect to develop nasal congestion after eating chocolate, but if you are allergic to one or more of the ingredients in chocolate, you may experience this symptom. Sinus congestion occurs when the tissues in your sinuses become...
An allergic reaction is a common experience that occurs when your body comes in contact with a substance, or allergen, that causes an immune system response. Individual responses differ, as do the substances that trigger a reaction. An allergic...
When you think of seasonal allergies, you probably think of springtime. However, there are different kinds of allergens that appear throughout the year, causing watery eyes, nasal congestion, sneezing and a runny nose. Seasonal allergies can...
