Because coughing may cause throat tickling and cause acid spitting, especially in patients with gastroesophageal reflux, most of them will be prone to acid reflux, especially for chronic coughing, which is a common cause of diseases with gastroesophageal reflux, and chronic coughing accounts for about 5% of the cases. Gastroesophageal reflux is, as the name implies, the process of regurgitation of stomach acid from the stomach into the esophagus, which manifests itself as spitting up acidic water. Because coughing requires force, when the force in the airway moves upward, there is a sudden burst of force to expel phlegm or foreign bodies from the respiratory tract, and at the same time the gastroesophageal position may be open, which causes acid reflux. What is supposed to go downward ends up in the esophagus, and in turn the esophagus spits out acid. If it occurs occasionally, it may not require special attention, because all people may experience acid spitting. If it occurs repeatedly, especially if you have gastroesophageal reflux disease, you need to give treatment, and you can use PPI, which is a drug that inhibits stomach acid, and the corresponding acid vomiting will be reduced, and then the cough will be reduced, which will be beneficial for coughing and acid reflux.