A sinus infection lasting longer than 4 weeks should be considered more than just an acute infection and, in fact, should be considered a chronic sinus infection or chronic sinusitis. You can differentiate between an acute recurrent problem and chronic sinusitis because the symptoms of acute recurrent sinusitis will resolve after an adequate course of therapy. If 4 weeks of therapy does not yield any relief or minimal relief, then you may be suffering from a chronic problem. You may get intermittent relief because patients with chronic sinusitis typically note that their symptoms come and go, with acute exacerbations recurring to varying degrees.
According to a clinical outcome study performed at Harvard University, the chronic symptoms associated with chronic sinus disease can impair the quality of life of a sufferer more severely than heart disease impairs someone with congestive heart failure. This means that if you suffer from sinusitis, your sinus disease can be debilitating to your overall health and your lifestyle. And for those physicians and other well - intentioned folks who tell you to just live with it, this Harvard study proves that some people really have no idea just how miserable you can feel when your sinuses are out of control.