The phenomenon of yellow nasal discharge and nasal congestion may be acute rhinitis combined with bacterial infection, acute and chronic sinusitis, unilateral may also be caused by a foreign body in the nasal cavity.
1. Acute rhinitis combined with bacterial infection: because the viral infection will lead to nasal congestion, sneezing, headache, cold and loss of appetite and other systemic symptoms, late combined with bacterial infection nasal secretion will be mucous and gradually changed to purulent.
2. Acute and chronic sinusitis: due to the spread of inflammation in the nasal cavity, neighboring foci of the expansion of an acute and chronic suppurative sinusitis, can be manifested as nasal congestion, runny nose, and olfactory disorders and other symptoms, so there may be a yellow snot nasal congestion phenomenon.
3. Nasal foreign body: If there is a foreign body in the nasal cavity, there will also be unilateral nasal congestion and yellow nasal discharge symptoms.
If the above symptoms occur, it is recommended to identify the cause of the disease and take corresponding treatment measures.