After washing the nose, the nose does not work, may be related to nasal stool blocking nasal cavity, and disease factors, etc., as follows: First, nasal stool blocking nasal cavity: there may be nasal stool blocking nasal cavity after washing, resulting in the patient’s nose is not ventilated, this situation can continue to use saline rinse. If you still can’t flush it out, you can go to the ENT clinic and let the doctor use the suction device or sinus pliers to clip out the boogers under the guidance of the nasal endoscope to see if this can lead to better ventilation of the nose. Second, disease factors: there may be a relationship with patients with sinusitis, nasal polyps, deviated nasal septum, hypertrophic rhinitis and other diseases, nasal rinsing can only rinse out the nasal stool, it is difficult to change the structure of the nasal cavity. If a patient has enlarged turbinates, deviated septum, or nasal polyps in the nasal cavity, even after rinsing, the nasal ventilation will not improve too much, and in this case, a CT of the nose is needed for further evaluation to see if surgery or other treatments are needed.