Nasopharynx has sputum to be able to do only after suction

Nasopharyngeal sputum can only be sucked after the best to do nasal endoscopy, if it is caused by rhinitis, can be treated with nasal spray agent, but also need to use saline nasal irrigation, with mucus excretion agent treatment is also more effective. If the above method of treatment has no effect, but also need surgery.