But there may not be a known cause of your runny nose. Doctors call this nonallergic rhinitis or vasomotor rhinitis. One of the main reasons for a stuffy nose is inflammation of your nostrils. The causes of a stuffy nose are listed right below. Blow your nose gently to get https://www.linkedin.com/feed/update/urn:li:share:7356320248985194496/?actorCompanyId=77283885