Nasal congestion and phlegm in the throat can be seen in upper respiratory tract infection, rhinitis, sinusitis and other diseases, it is recommended to apply medication under the guidance of a doctor. 1. Upper respiratory tract infections are mostly infectious diseases caused by viral and bacterial invasion of the upper respiratory tract, which can be manifested as nasal congestion, runny nose, cough and phlegm. Under the guidance of a doctor, you can use phenmetrazine tablets to relieve nasal congestion, runny nose and other symptoms, and if necessary, combined with oral solution of aminoglutethimide hydrochloride and other expectorant treatment. 2. Rhinitis will appear nasal congestion, runny nose, nasal discharge to the throat resulting in phlegm and other symptoms, it is recommended to the hospital otorhinolaryngology department to identify the cause of the disease in the doctor’s guidance, the use of budesonide nasal spray and other hormonal drugs nasal spray treatment, appropriate with physiological seawater rinsing of the nasal cavity, to remove the discharge of nasal discharge. 3. Sinusitis will appear nasal congestion, pus flow, headache, nasal discharge to the throat and other symptoms, you can use mometasone furoate nasal spray and other hormonal drugs, combined with eucalyptus pinocampus enteric capsule and other medications to promote the treatment of the nasal cavity and sinus rinsing, if necessary, to accelerate the recovery of inflammation. Nasal congestion with phlegm in the throat, it is recommended to go to the ENT department of the hospital in a timely manner, to identify the cause of the disease under the guidance of the doctor for further consultation and treatment.