Being sick is never fun. Colds are very contagious viral infections that can lead to a variety of different symptoms. Sore throats, congestion, coughing, runny noses, and fatigue are all common symptoms associated with colds. Colds affect the upper respiratory system, including your sinuses. While most cold symptoms are mild and go away on their own, untreated congestion can lead to complications like sinus infections. This article will review how to determine if your congestion ...