[Expert Solution]: Why do patients with asthma usually…

Why do patients with asthma usually require more than one type of drug to mange the symptoms? Many drugs become ineffective after long-term usages Inflammation narrows airways from the inside, and bronchoconstriction narrows airways from the outside Asthma attacks are initiated by allergens, and multiple drugs are necessary to focus on specific reactions Asthma has multiple symptoms (e.g., shortness of breath, wheezing, cough)