The patient’s nose is dry inside mainly considering two factors: 1, the patient’s nasal mucosa secretion function decreases, so the nose is often dry inside, sometimes there are also a lot of dry crust formation, resulting in nasal congestion. 2, the patient may live in an excessively dry environment, especially in the winter in the north, because the heating, the humidity in the house will be particularly low, which will lead to dry symptoms of the patient’s nasal mucosa. Therefore, the patient must be actively treated for the cause of the disease. If it is due to personal factors and the secretion function of the nasal mucosa decreases, you can consider spraying with physiological saline and taking oral nasal abdomen and orifice granules for conditioning. If it is due to environmental factors, it is necessary to set to air humidifier or sprinkle water properly in the room, which can effectively improve the humidity.