Normalization of lung function in asthma is not necessarily a sign of improvement, and a comprehensive evaluation is needed. If a history of asthma exists, normal bronchodilator and provocation tests may be seen in remission, so normalization of lung function is not necessarily a sign of improvement. In people with asthma, if previous lung function test results have been in the normal range, but asthma attacks still occur, then even if the lung function is normal, it can not be said that asthma is under control. The assessment of asthma also needs to refer to comorbidities such as rhinitis, asthma control test, the number of attacks, sputum eosinophil count, etc., which are all indicators of a comprehensive assessment of asthma. Only when the relevant indicators have improved comprehensively can a judgment be made on the overall improvement of the condition. Therefore, it is recommended to consult a doctor and follow the doctor’s instructions for relevant examinations and treatment.