natural ways of treating nasal congestion We all know that feeling of a blocked or stuffy nose when it becomes very difficult to breathe especially during a cold or flu. Nasal congestion happens when there is a swelling on the inside of our nose causing a build-up of mucus. Often times, most people use nasal decongestants to get rid of the stuffy nose, but according to an expert who is among the best ENT Specialists in Chennai, there are natural methods of treating nasal congestion that are also very effective.