Because the causes of thirst and dry mouth are different, the drugs and treatment methods taken are also different. If it is thirst and dry mouth caused by high blood sugar in diabetes, you should use drugs to reduce blood sugar, or even use insulin injection to control blood sugar, so that the symptoms of thirst and dry mouth can be completely alleviated. Of course, diabetes should not only focus on the reduction of blood sugar, but also need to use drugs including lipid-lowering drugs, antihypertensive drugs, and even antiplatelet drugs. It should be comprehensively controlled, not only focusing on thirst, dry mouth, but also preventing various complications of diabetes. If the diabetes insipidus is due to the lack of antidiuretic hormone in the body, it is necessary to take Micoan orally, which is a synthetic antidiuretic hormone, to treat dry mouth and thirst caused by diabetes insipidus. If it is due to the increase of blood calcium in the body, such as hyperparathyroidism or malignant tumors, the solution to dry mouth and thirst at this time is not to take the so-called drugs, but to clarify the cause, find the tumor, remove the tumor, and then solve the symptoms of thirst and thirst.