Causes of Sinus Congestion
- Viral Sinus Infection.
Part of the common cold. A cold infects the lining of the nose. It also infects the lining of all the sinuses. Nasal and sinus congestion occur together.
- Bacterial Sinus Infection.
A problem when a sinus becomes blocked and infected with bacteria. This occurs in 2% of colds. It starts as a viral sinus infection. Main symptoms are increased sinus pain or return of fever. Thick nasal secretions that last over 14 days may point to a sinus infection.
- Allergic Sinus Reaction.
Sinus congestion often occurs with nasal allergies (such as from pollen). Sneezing, itchy nose and clear nasal discharge point to this cause.
Treatment of Sinus Congestion
- Viral Sinus Infection.
Nasal washes with saline. Antibiotics are not helpful.
- Bacterial Sinus Infection.
Antibiotics by mouth are needed.
- Allergic Sinus Reaction.
Treatment with allergy medicines helps the nose and sinus symptoms.
Color of Nasal Discharge with Colds
- The nasal discharge changes color during different stages of a cold. This is normal.
- It starts as a clear discharge and later becomes cloudy.
- Sometimes it becomes yellow or green colored for a few days. This is still normal for a cold.
- Thick colored discharge points to bacterial sinusitis ONLY if it occurs with other symptoms. These are:
- Sinus pain (not just sinus congestion) OR
- Swelling or redness over any sinus OR
- Return of a fever after it has been gone for over 24 hours OR
- Thick nasal discharge lasts over 14 days without improvement.