Nasal congestion refers to the blockage of the nasal passages caused by swelling of blood vessels due to viral infection. It is the most common symptom of upper respiratory tract infections. Secretions obstructing the nasal passages from specific infections of the nasal cavity, such as nasal syphilis, nasal diphtheria, nasal tuberculosis, rhinoscleroma, rhinitis, and sinusitis, are all causes of nasal congestion.
This section is being translated and completed.
This section is being translated and completed.
This section is being translated and completed.
This section is being translated and completed.
This section is being translated and completed.
This section is being translated and completed.
This section is being translated and completed.
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This information is for health education only and is not a diagnosis. Please consult a qualified clinician if you feel unwell.