The first thing you need to do is to identify the cause of dry mouth and treat it. The causes of dry mouth can be categorized into non-pathological and pathological, and can be treated by changing lifestyle habits and medication. 1. Non-pathological: Dry mouth and bitter mouth can be caused by improper diet, low water intake, excessive stress, irregular life, lack of sleep, excessive smoking, alcoholism, sleeping with the mouth open, etc. The cause of dry mouth and bitter mouth can be determined by changing life habits, relaxing and relaxing. It can be self-regulated by changing life habits and relaxing the mind, and the dry mouth can be relieved or disappear. 2. Pathological: For example, oral diseases, patients are advised to pay attention to oral hygiene, brush their teeth on time, and rinse their mouths in time after eating. Digestive system diseases, patients can take acid-suppressing drugs under the guidance of the doctor for treatment, commonly used drugs such as omeprazole enteric-coated capsules. If the symptoms of dry mouth and bitter mouth are still not relieved, or accompanied by other symptoms, you should go to the hospital in a timely manner, clear reasons for targeted treatment.