Understanding allergic asthma
Allergic (or atopic) asthma occurs when the elements in the environment of the blame for the establishment of the typical symptoms such as coughing, wheezing and difficulty breathing. Cockroach, cat, and fungi are a common cause.
“Most asthma we see, especially in children, allergic asthma,” said Felicia Rabito, PhD, MPH, associate professor in the Department of Epidemiology at Tulane School of Public Health and Tropical Medicine in New Orleans. “Among children with asthma in New Orleans, what we found was that 76 percent of children had positive skin test for multiple allergens.”
What causes the symptoms of allergic asthma
Allergies occur when the immune system responds to an element in the environment (allergens or triggers) as if it were a threat. The swelling and itching are common allergic reactions. In allergic asthma, inflammation and irritation of the respiratory tract occurs, reducing the frequency enough so that breathing becomes difficult. Shortness of breath that causes the symptoms of asthma – wheezing, coughing and shortness of breath, which is characteristic of allergic asthma.
According to national data, approximately half of all asthma symptoms in asthmatics, in response to one or more allergens. Importantly, however, that not all allergies cause asthma symptoms to develop. So even if the skin test shows that you are allergic to grass, which does not necessarily mean that they enjoy picnic Bermuda grass is sure to turn your asthma symptoms.
Allergic asthma triggered
If you suspect you have allergic asthma, you should see an allergy that can really try to figure out what your specific triggers. Once activated, it can be easy to determine. For example, if you start wheezing was taken to a house where cats live, you may be allergic to cat hair. But for many people, asthma allergens connection can not be too obvious, or may have more than one allergen that triggers asthma symptoms.
A person with allergic asthma were more likely to trigger reactions that breathing other types of allergens. The researchers used information from people with asthma to participate in a survey of the Third National Health and Nutrition Examination Survey (NHANES III) and estimate the percentage of asthma cases are caused by common allergens such as:
* Los Gatos: 29.3 percent
* Alternaria (mold): 21.1 percent
* White Oak: 20.9 percent
* Short Ragweed: 10.5 percent
* Dust mites: 10.1 percent
* The German cockroach: 7.6 percent
* Russian Thistle: 4.6 percent
In other words, allergy to cats is responsible for one of the three cases of allergic asthma, while the fungus and white oak each cause one in five. Food allergies are generally not contribute to the allergic asthma. However, some people with asthma to the reaction of sulfite-containing foods such as shrimp, dried fruits, beer and wine, and you may experience asthma symptoms when they eat food or drink.
The study also found that 17.9 percent of people with asthma in a sample of NHANES have an allergy to peanuts, but further analysis did not indicate that peanut allergies are caused by asthma. Other factors seem more likely that a person with asthma due to allergies, such as being male, having higher levels of education, and living in urban areas. These people are more likely to have asthma than allergic asthma patients without other risk factors.
Allergic asthma control
For some people with allergic asthma, allergy can help prevent asthma attacks. Allergy medications are useful in the prevention and control of the reaction to pollen, animal dander, dust mites and dust. Others will be able to prevent asthma symptoms by simply avoiding the allergen triggers them.
It is always a good idea to bring your day to day asthma medications your doctor prescribes. But the safest thing to do, no matter what category it falls in allergic asthma, is to carry a rescue inhaler with you to any unexpected exposure to allergens.