Reflux asthma is one of the extraesophageal manifestations of GERD. Patients often also have the clinical manifestations of GERD such as acid reflux, heartburn, abdominal distension, and warmth, but a significant number of patients have only mild acid reflux or heartburn, or even no acid reflux or heartburn. Gastroesophageal reflux-derived asthma is more likely to have the following characteristics: (1) wheezing is mainly difficult to inhale; (2) cough and wheezing are not obviously seasonal; (3) cough and wheezing mainly occur at night; (4) cough and wheezing are easy to occur in a lying position and can be relieved after sitting up; (5) cough and wheezing are easy to occur after a full meal or eating spicy food; (6) breath-holding can be relieved or alleviated after warming; (7) there is also unexplained pharyngitis, highly suspected to be caused by gastroesophageal reflux, manifested by dry throat, itchy throat, foreign body sensation in the throat, hoarseness, repeated laryngospasm attacks, etc.; ⑧ other extraesophageal manifestations of gastroesophageal reflux, such as reflux rhinitis, sinusitis, otitis media, dental erosion, etc., were confirmed to exist; ⑨ allergen tests were negative or there was no coughing and wheezing after contact with allergens; ⑩ no pulmonary lesions were found on chest X-ray, chest C T, etc. Diagnostic tests: 1. Gastroscopy: It is possible to find out whether there is esophageal erosion and the degree of erosion, and whether the cardia is relaxed; 2. 24-hour pH monitoring: For non-erosive GERD without mucosal breakdown, this test is the “gold standard” and can clarify whether “asthma “3. Esophageal manometry: important for the diagnosis of esophageal motility disorders; 4. Intraluminal impedance monitoring: can monitor reflux with p H > 4, and can clarify whether “asthma” symptoms are related to reflux. Treatment: 1. In order to reduce reflux at night and in the recumbent position, it is advisable to adopt a sloping position (only elevating the head is not enough) or to elevate the head of the bed appropriately; eat slowly, have small and frequent meals, avoid lying in bed immediately after meals, and adopt the recumbent position only after at least 2 hours; reduce factors that lead to increased abdominal pressure, such as not tightening the belt, avoiding constipation and controlling body weight; try not to consume high-fat foods, chocolate, coffee, and strong tea. Avoid high-fat food, chocolate, coffee, strong tea, and abstain from alcohol; 2. Drug therapy: H2 receptor antagonists, proton pump inhibitors, prokinetic drugs, mucosal protective agents, bronchodilators, anti-inflammatory drugs; 3. Endoscopic esophageal microcurrent radiofrequency therapy; 4. Laparoscopic fundoplication.