Upper Respiratory Tract Infection

📖What is Upper Respiratory Tract Infection?

Upper respiratory tract infection refers to an infection affecting the nose, sinuses, pharynx, or larynx, and encompasses common illnesses such as the common cold, sinusitis, pharyngitis, and laryngitis. It is overwhelmingly caused by viruses and is one of the most frequently encountered illnesses in both children and adults, typically spreading through respiratory droplets and contaminated surfaces. The infection triggers inflammation of the mucous membranes lining the upper airway, producing the characteristic congestion, throat irritation, and cough. Most cases are mild and self-limiting, resolving within a week to ten days without specific treatment. Occasionally, a secondary bacterial infection can develop, requiring closer evaluation and, in some cases, antibiotics.

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