What Causes It?
Viral infections such as the common cold.
Bacterial infections following prolonged cold symptoms.
Allergic rhinitis causing nasal inflammation and swelling.
Nasal polyps or deviated septum obstructing sinus drainage.
Environmental irritants like smoke, dust, and air pollution.
Dental infections that spread to the sinuses.
Signs & Symptoms
Persistent nasal congestion or blockage.
Thick yellow or green nasal discharge.
Facial pain, tenderness, or pressure around the eyes, cheeks, or forehead.
Reduced sense of smell or taste.
Fever, fatigue, and headache.
Ear pain or pressure.