It is true that the incidence of pediatric asthma decreases with age, which is related to the gradual improvement of the immune function of children during their growth and development. Therefore, after a certain age, the frequency of asthma attacks can be reduced, or the degree of attacks can be reduced, but it does not mean that they are “cured”. Because the airway inflammation in asthma is chronic, it is not like a cold or flu that heals after an attack, but the airway inflammation persists regardless of the attack. Many asthma patients with “non-exacerbations” around puberty often have varying degrees of airway dysfunction on pulmonary function tests, indicating that airway hyperresponsiveness still exists and suggesting the possibility of future asthma attacks. In fact, the rate of pediatric asthma developing into adult asthma is quite high, up to 60-70% and as low as 5-10%. According to statistics in Hong Kong, more than 5% of children have asthma compared to 0.5% of adults, so 9 out of 10 children can be cured, and most of these children are cured after treatment. Because airway pathology in children is reversible in the early stages of asthma onset, it can be treated to relieve asthma symptoms or resolve on its own. Therefore, the key to preventing childhood asthma from developing into chronic adult asthma is early diagnosis and treatment. Asthma attacks in children are frequent and stubborn, and if they are not treated early, “cure” is not a certainty. Therefore, the treatment of asthma should be “early” and waiting for “self-healing” is not right and is a negative attitude. Especially in children around 10 years old, active treatment is needed, and only a small percentage of children have “self-remission and self-healing”. However, if the asthma is controlled for 2 years or more without an attack by active and systematic treatment before adolescence, there is hope that the asthma attack will end during adolescence.