Can you live with only one lung and asthma?
YES! you can live with one lung and have asthma.
Your life is lived a bit slower and carefully (not to provoke an attack) but you still live a normal and healthy live!
no, because asthma is a disorder in the airways, not the lungs in the first place. when triggered by an irritant, what happens is your windpipe narrows down, and mucus clogs it, causing breathing difficulties, and then an asthma attack. asthma has nothing to do with the lungs - they will still be perfectly normal.
It's rare but possible. Most asthma is resulant from stress or alergic reaction. However, whatever causes reduction in the size of the bronchi may be called asthma. So a condtion where, for instance, something is inhaled into one lung only, and causes irritation could inflame the bronchi and cause asthma-like symptoms.