Asthma caused by internal allergy vs. external allergy
asthma is a chronic illness of the lungs, where the respiratory airways are blocked, inflamed, and narrowed. The symptoms of bronchial asthma include wheezing, coughing as well as shortness of breath or chest tightness. Asthma has a direct impact on the lives of more than 25 million Americans who are a trusted Source and 1…