These two conditions are not the same although both asthma and allergies are characterised by an immune response to certain substances that act as triggers in certain people. Asthma is a chronic inflammatory respiratory disorder. When the bronchial tubes that carry air to the lungs become con-stricted, causing a difficulty in breathing, shortness of breath, coughing and wheezing it is an asthma attack. When the bronchial tubes of the lungs are inflamed, even in mild cases, it plays a key role in all forms of the disease. There is purportedly a link to a genetically inherited tendency for asthma. It is possible also that asthma is caused by allergies..... but not all people with allergies have asthma.When a chemical called histamine is released it can cause many of the physical manifestations of both asthma and allergies like inflammation, congestion, muscle contraction in the airways as well as excessive mucus.
There are many irritants that can set of asthma and allergies like.....dust, dust mites, mold, pollen, pet dander and cockroaches. Other triggers are COLD AIR, humidity, tobacco smoke, exercise or food as also respiratory infections such as colds, flu, etc.