The nose does not flow yellow snot is common in acute and chronic rhinitis, acute and chronic sinusitis, nasal foreign body, nasal sinus swelling and other diseases, it is recommended to go to the hospital otorhinolaryngology to diagnose and then follow-up treatment. 1. Acute and chronic rhinitis: often manifested as nasal congestion, combined with bacterial infection can flow yellow snot. Saline rinsing of the nasal cavity, hormone nasal spray, ephedrine nasal drops, oral proprietary Chinese medicines and other symptomatic treatment, but need to pay attention to the application of ephedrine nasal drops is generally not more than 7 days. Antibiotics should be added when combined with bacterial infection. It is recommended to use medication under the guidance of a doctor, and children need to be careful with the use of medication. 2. Acute and chronic sinusitis: often manifested as nasal congestion, pus flow, nasal discharge, headache and so on. In addition to the application of hormonal nasal sprays, nasal decongestants, but also need to add mucus to promote the discharge of agents, such as eucalyptus pinocin enteric soft capsule, etc., such as the combination of bacterial infections, can be added to cefixime, roxithromycin and other antibiotics. Patients with a history of allergy to related drugs are prohibited. 3. Nasal foreign body: Mostly seen in children, in addition to the nose is not flowing yellow snot, can also be accompanied by blood in the snot, nosebleed. It is recommended to go to the ear, nose and throat department of the hospital as soon as possible, and remove the foreign body as soon as possible. 4. Nasal sinus swelling: unilateral onset, often due to the swelling blocked nostrils, sinuses and caused by the nose does not flow yellow snot, often accompanied by blood in the snot, headache and other discomforts. You need to go to the ear, nose and throat department of the hospital as soon as possible to improve the relevant examination, clear diagnosis and then proceed to the next step of treatment. Patients with yellow nasal discharge from the nose, it is recommended to consult the ENT department of the hospital in a timely manner, after a clear diagnosis, follow the doctor’s instructions for treatment.