Dry mouth may be caused by low water intake, in this case timely hydration is good. It may also be caused by diabetes, uremia, mumps and other reasons, patients can take metformin extended-release tablets, desmopressin acetate tablets, cefixime and other methods of treatment under the advice of the doctor. 1. Drinking less water: drinking less water itself, the body because of lack of water will lead to dry mouth, in this case, timely supplementation of water is good. 2. Diabetes: patients with increased blood sugar will appear dry mouth, urinate more and weight loss symptoms. Metformin extended-release tablets can be used under the guidance and advice of the doctor to control the symptoms of dry mouth caused by high blood sugar. 3. Uremia: Due to the lack of certain hormones in the body, the kidneys urinate more, and the symptoms of dehydration and dry mouth appear. You can use Desmopressin Acetate tablets under doctor’s advice to treat dry mouth caused by uremia. 4. Mumps: Dry mouth occurs because mumps causes damage to the glands of the mouth and reduces salivary secretion. Patients can follow the doctor’s instructions to use antibiotics to treat, common drugs such as cefixime. Patients with symptoms of dry mouth, exclude physiological causes, should go to the hospital in a timely manner for relevant examinations, under the guidance of the doctor’s advice, the correct treatment, the use of drugs need to follow the doctor’s instructions.