Nasal congestion is a common symptom that can be caused by several conditions and environmental factors. In mostcases, it improves over time.However, it can also be treated using a combination of medications or home remedies.Nasal congestion, also called a stuffy nose, is often a symptom of another health problem such as a sinus infection. It may also be caused by the common cold Nasal congestion is marked by:a stuffy or runny nose, sinus pain, mucus build up, swollen nasal tissue.Home remedies