Dry mouth can be improved by drinking plenty of water, eating a light diet, and taking a multivitamin supplement. 1. Drink more water: the appearance of dry mouth, different reasons to improve the method is not the same. If it is due to recent hot weather, drinking too little water and other physiological factors. You can drink more water, eat fresh fruits and vegetables, can effectively improve the symptoms of dry mouth. 2. Supplementation of multivitamins: generally when there is a lack of vitamins in the organism, it will lead to a loss of water in the mouth. At the same time, the secretion of saliva will also be reduced to a certain extent, thus causing the symptoms of dry mouth, you can supplement the multivitamins, such as you can eat more fresh vegetables, such as lemon, tomatoes, apples, leeks, strawberries, etc., to improve the symptoms of dry mouth. 3. Improvement of the cause: the appearance of dry mouth, need to be alert to whether the blood sugar is elevated. Diabetic patients will be due to elevated blood glucose, resulting in renal tubular reabsorption capacity can not reabsorb glucose into the bloodstream, hypertonic urine, with the excretion of hypertonic fluid, which will cause an increase in urine, the body’s water to reduce, resulting in the emergence of dry mouth. The symptoms of dry mouth can be relieved by replenishing electrolytes and hydration. Dry mouth and tongue may also be related to dry syndrome, bronchitis and other conditions, the symptoms of serious patients need to improve the cause of the disease, timely and standardized treatment, the use of drugs need to comply with medical advice.