Chronic sinusitis snot backflow for chronic sinusitis caused by postnasal drip syndrome, need to target the primary pathogenesis of treatment, such as drug therapy, nasal irrigation. Chronic sinusitis is a chronic inflammatory disease of the sinus mucosa, in this chronic inflammatory state, nasal secretions can flow backward into the nasopharynx, resulting in pharyngeal foreign body sensation, coughing and other uncomfortable symptoms. Treatment needs to be directed at the primary disease, preferred drug treatment. Commonly used drugs for nasal glucocorticoids, such as mometasone furoate, budesonide nasal spray, etc., can significantly reduce nasal inflammation. Mucolytic pro-discharge agents, such as Ambroxol and acetylcysteine, can also be used to help discharge nasal secretions. Saline rinsing of the nasal passages can also be used on a daily basis to alleviate the symptoms of nasal reflux. Specific treatment measures need to consult your doctor and use medications under his or her supervision.