Nasal mucus can only be sucked out with the mouth to consider postnasal drip syndrome, may be related to hypertrophic rhinitis, nasal polyps and chronic sinusitis and other factors.
1. Hypertrophic rhinitis: it is due to repeated stimulation of the nasal mucosa by inflammation, leading to an increase in the amount of nasal mucosal secretions to form snot, but the patient’s nasal mucosa is swollen, the nasal cavity is narrower, so the snot can flow into the pharyngeal cavity through the postnasal cavity, triggering the symptom that snot can only be sucked out through the mouth. It can be accompanied by nasal congestion, headache and decreased sense of smell.
2. Nasal polyps: a benign occupying lesion growing in the nasal cavity, when the polyp organization blocks the nasal cavity, snot is not easily discharged through the anterior nostrils, it can also trigger snot can only be sucked out by mouth symptoms, which can be accompanied by nasal congestion, decreased sense of smell and other symptoms.
3. Chronic sinusitis: the main symptoms are runny nose, nasal congestion, decreased sense of smell. If it is the inflammation of the sinuses of the latter group, the secretion may be easy to flow backward to the throat, and there will be sniffing snot.
Snot can only be sucked out of the mouth there may be other causes, it is recommended to consult the ENT, clear cause of the disease and then follow the medical advice treatment.