Ads
related to: allergy vs sensitivity- Where to Buy
Buy Flonase and Relieve Allergies.
Find Local Retail Locations Here!
- The Flonase Difference
Flonase Helps Stop 6 Inflammatory
Substances to Treat Your Symptoms.
- Available on Walmart
Get Allergy Relief w/ Flonase.
Enjoy 24hr. Allergy Symptom Relief.
- Understanding Allergies
Learn More About Nasal Allergy
Basics, Symptoms, and Treatment.
- Where to Buy
Search results
Results From The WOW.Com Content Network
Allergies, also known as allergic diseases, are various conditions caused by hypersensitivity of the immune system to typically harmless substances in the environment. These diseases include hay fever, food allergies, atopic dermatitis, allergic asthma, and anaphylaxis.
Immunology. Type I hypersensitivity (or immediate hypersensitivity ), in the Gell and Coombs classification of allergic reactions, is an allergic reaction provoked by re-exposure to a specific type of antigen referred to as an allergen. [1] Type I is distinct from type II, type III and type IV hypersensitivities.
Oral allergy syndrome ( OAS) or pollen-food allergy syndrome (PFAS) is a type of allergy classified by a cluster of allergic reactions in the mouth and throat in response to eating certain (usually fresh) fruits, nuts, and vegetables. It typically develops in adults with hay fever. [1]
Types of allergens. Allergens can be found in a variety of sources, such as dust mite excretion, pollen, pet dander, or even royal jelly. [2] Food allergies are not as common as food sensitivity, but some foods such as peanuts (a legume ), nuts, seafood and shellfish are the cause of serious allergies in many people.
Hypersensitivity (also called hypersensitivity reaction or intolerance) is an abnormal physiological condition in which there is an undesirable and adverse immune response to antigen. [1] [2] It is an abnormality in the immune system that causes immune diseases including allergies and autoimmunity. It is caused by many types of particles and ...
Allergy testing may reveal the specific allergens to which an individual is sensitive. Skin testing is the most common method of allergy testing. [35] This may include a patch test to determine if a particular substance is causing the rhinitis, or an intradermal, scratch, or other test.