Before a diagnosis of allergic disease can be confirmed, the other possible causes of the presenting symptoms should be carefully considered. Vasomotor rhinitis, for example, is one of many maladies that shares symptoms with allergic rhinitis, underscoring the need for …
The pathophysiology of allergic responses can be divided into two phases. The first is an acute response that occurs immediately after exposure to an allergen. This phase can either subside or progress into a “late phase reaction” which can substantially …
Risk factors for allergy can be placed in two general categories, namely host and environmental factors. Host factors include heredity, sex, race and age, with heredity being by far the most important. There are recent increases in the incidence of …
Many allergens are airborne particles, such as dust or pollen. In these cases, symptoms arise in areas in contact with air, such as eyes, nose and lungs. For instance, allergic rhinitis, also known as hay fever, causes irritation of the …
The concept “allergy” was originally introduced in 1906 by the Viennese pediatrician Clemens von Pirquet, after noting that some of his patients were hypersensitive to normally innocuous entities such as dust, pollen, or certain foods. Pirquet called this phenomenon “allergy” …
In the following lines I’ll try to explain what allergy is. Here is something from wikipedia that we’ll discuss upon.
Allergy is a disorder of the immune system that is often called atopy. Allergic reactions occur to environmental substances known as …
