Allergies
Overview of the leading causes for Allergies
Allergies are a very common condition that are triggered by foreign substances called allergens. For people who suffer with allergies, the immune system will release histamines in order to combat the allergens. These chemicals cause allergy symptoms that include itchy eyes, sneezing, nasal congestion, wheezing and possibly skin conditions.
Common allergens include:
- Dust
- Pet or animal dander
- Pollen
- Food
- Mold
- Drugs
Symptoms
Symptoms usually depend on which part of the body has been touched by an allergen. For example:
- If an allergen comes in contact with the eyes it may cuase itchy, watery, swollen, red eyes
- Allergens that are inhaled may cause a stuffy nose, itchy nose and throat, cough and wheezing
- Eating something you are allergic to can cause nausea, abdominal pain, vomitting, diarrhea, or a severe, life threatening reaction.
- Allergens that touch the skin can cause a rash, hives, blisters and itching
- Drug allergies can involve the entire body and can lead to a variety of symptoms.
Resources
Asthma and Allergy Foundation
National Allergy Forecast
American Acadamy of Allergy, Asthma and Immunology (AAAAI)
