Lung infections usually aggravate bronchial asthma symptoms. 1. Bronchial asthma is a chronic inflammatory disease of the airways that causes recurrent episodes of chest tightness, shortness of breath, wheezing, coughing and other unusual symptoms. 2. Lung infections are inflammatory lesions in the lungs caused by various factors, which can lead to symptoms such as coughing, coughing up sputum and fever. Therefore, the occurrence of lung infection will not only lead to the aggravation of bronchial asthma symptoms, but also lead to the aggravation of the disease. 3. For patients with bronchial asthma that is combined with a lung infection, the interaction of the two diseases can aggravate asthma, predispose to acute attacks and even respiratory failure. Therefore, in this case, the individual should not only actively treat the lung infection, but also effectively control the symptoms caused by bronchial asthma and improve lung function. Individuals who experience unusual wheezing, shortness of breath, difficulty breathing, etc. should seek medical attention.