Dry mouth and dry nose may be due to lack of water in the body, or the environment is too dry or hot. In addition, there may be suffering from certain diseases, such as dry syndrome, etc., need to analyze specific problems. 1. Lack of water: when the body lacks water, for example, after a lot of exercise and sweating without timely replenishment of water, the oral mucosa, nasal mucosal secretions will be reduced, there will be a dry mouth and tongue, dry nose performance. 2. Dry and hot environment: when in such an environment, the body will also have a lot of water evaporation, appearing dry mouth and tongue, dry nose and other performance. 3. Suffering from dry syndrome: mainly due to low immunity, genetic inheritance and other factors, there will also be dry mouth, dry nose performance. It is also accompanied by dry eyes and tongue pain. Need to standardize the use of medication treatment. If you can not clarify the cause, it is recommended that you go to a regular hospital in time to avoid delaying the condition, which is not conducive to your health.