Dry cough during the day, no cough at night, associated with eating, cough more than 8 weeks, most often due to gastroesophageal reflux disease, if accompanied by symptoms such as heartburn, acid reflux, erratic reflux, consider taking omeprazole, morpholine empirical treatment. A 24-hour esophageal PH test or gastroscopy would be better. Other common causes of chronic cough include cough variant asthma, upper airway cough syndrome, eosinophilic bronchitis, and allergic cough, etc. Once the diagnosis is confirmed, the right medicine will be prescribed. It is recommended to visit the respiratory medicine department of a regular hospital. You can see the articles I provided on this subject on Dr. Deng Yishu’s personal website, but I hope they will be helpful for your diagnosis.