Most people experience a cold at some point during the year, usually brought on by a viral infection that affects the nose and throat. While colds are generally mild and resolve within a week or two, sometimes the symptoms can worsen or linger, signaling a potential sinus infection (sinusitis). Sinus infections occur when the sinuses become inflamed due to bacteria, viruses, or even fungi. Recognizing the difference between a lingering cold and a developing sinus ...
