Asthma does not attack, negative bronchial excitation test is not all right, generally represents the patient’s symptoms improve, but does not mean a complete cure. Asthma, belongs to a kind of allergic disease, generally need long-term treatment, if the patient is now significantly improved symptoms, or asymptomatic, and negative bronchial excitation test, generally represents the asthma disease is in a stable period, but does not mean that the disease is completely cured. And patients in the use of glucocorticoid aerosol or bronchodilator will lead to bronchial dilatation to a certain extent, at this time the patient will not have an asthma attack, and the results of the bronchodilator test may be negative, but the results belong to the false-negative, which can not mean that there is no matter. Therefore, patients still need to be vigilant asthma attacks, avoid contact with allergens, and usually exercise properly to enhance physical fitness. Asthma patients are advised to seek timely medical treatment, the doctor will judge the patient’s condition and other test results.