Many asthmatics are only willing to inhale fast-acting beta2 agonists (salbutamol, etc.), but not glucocorticoid medications. When I asked them why, they almost always said, “The former works quickly and well after smoking, so I like to use it. And after smoking the latter, it seems to have no obvious effect, so they don’t smoke it anymore”. In fact, this is a big misunderstanding. Although the former drug is effective quickly, it can only relieve the symptoms, which is the “symptoms”; the latter drug is relatively slow to produce the effect, but it is to control the root of asthma, which is the “root” of the treatment. If only the symptoms are treated, the effect cannot be maintained and it is easy to relapse. If only the root cause is treated, the effect will come too slowly. Therefore, we need to treat both the symptoms and the root cause, mainly treating the symptoms when it is urgent and treating the root cause when it is slow. It is easy to understand that in the treatment of asthma, treating the root cause is the most important treatment. Asthma is a chronic disease, and the efficacy should not be judged only by the momentary effect, but by the long-term effect.