Asthma is a chronic disease whose underlying disease basis is chronic airway inflammation, i.e., airway hyperresponsiveness. If airway inflammation is not effectively controlled and increased airway reactivity remains, it can cause recurrence or exacerbation. Asthma control guidelines require that asthma patients must first achieve control through treatment, and after the condition is controlled, the medication must not be hastily reduced or discontinued, but the best state of control must be maintained for more than 3 months. Then, under the guidance of doctors and close monitoring of the condition, the treatment can be gradually downgraded, i.e., the dose and type of drugs can be reduced. Special emphasis is placed on not advocating abrupt discontinuation of medication, as it may cause exacerbation of the disease. It should be reduced to the lowest drug dose under the premise of asthma control, and if it is persisted for more than 1 year, it can be tried to stop the drug. It is important to note that a significant proportion of patients will lose control again after stopping the medication, and then treatment has to be restarted. Therefore, we emphasize that patients with asthma need long-term treatment and can taper their medication while maintaining control, but long-term maintenance therapy should be adhered to in order to obtain a good level of control.