The patient’s nose appears blocked at night, however, it is normal during the day, mainly consider the following two aspects: First, it may be due to the dry air environment at home, the patient’s nose will also be dry after returning home from work, thus leading to the symptoms of nasal congestion. Second, consider that the patient himself has rhinitis, during the day, the patient is mostly in an upright position, affected by gravity or the patient will blow his nose hard, the nose will not be blocked in the nostrils, so the nose will not be stuffy during the day. However, at night, patients need to sleep and when they are lying down, the snot will flow backwards and will be blocked in the nostrils, so patients will have nasal congestion at night. Regardless of which of the above causes of nasal congestion at night, active symptomatic treatment, the condition will certainly improve.