Hello, there are many reasons for dry mouth, such as eating too salty, liver and kidney yin deficiency, insufficient body fluids, heat and body fluid damage, decoction and burning of body fluids, diabetes, hyperthyroidism, etc. Eating barbecue may cause dry mouth. lt; brgt; lt; brgt; It is recommended that you drink more water, eat a light diet, avoid spicy food, and eat more water-rich fruits, such as pears. If you have long-term dry mouth, it is recommended that you go to the hospital for examination.