Cough
Along with some problems in your nasal passages, sinusitis can also lead to coughing as well. The main reason is that the discharge would drain into your lungs and throat, which belong to the post-nasal drip. Due to the sensation of draining in the back of the throat, you might cough to respond. This condition would also produce phlegm and can be followed by a low-grade fever. In general, coughing is a simple mechanism of the body to expel phlegm which travels to your lungs. It will disappear gradually when your sinusitis is treated. [4]
