The symptoms due to such illnesses usually improve within a week. However, if you have been experiencing nasal congestion for a long time, or it hangs on after a cold, it could be because of the following conditions: Bacterial and viral sinus infections display similar symptoms, such as a stuffy https://www.linkedin.com/feed/update/urn:li:share:7356320248985194496/?actorCompanyId=77283885