I am 64 and suffer from late-onset asthama which I have endured for at least 7 years. After a very bad bout of bronchitis followed by weeks of asthma, I finally began to think about why I cannot stop coughing. I have reviewed the stuff on the web, and there is clearly controversy about this, but I do wonder if asthma is not an auto immune disease. My reasons for this are: a) it seems to get worse rather than better; b) my body seems to create more mucus the more I cough, which suggests that the very act of coughing stimulates the production of mucus; c) many children who suffer from asmtha apparently grow out of it, which suggests that their immune systems learns to deal with it. I would welcome informed medical opinion on this train of thought.