Having a stuffy nose is caused most often by nasal swelling caused by inflamed blood vessels, and less often than exclusively by mucus build-up. Stuffy nose is also refers to Nasal congestion or blocked nose or congested nose which is caused by cold, flu, allergies (all types) or sinus infection which in turn caused by the … Continue reading The ins and outs: 12 Magical Remedies To Clear Blocked Or Stuffy Nose