See also :
* [[Nasopharyngitis]]
* [[Rhinorrhea]]* [[Post Nasal Drip]]<br><br>
[[File:Nasopharyngitis.jpg]]<br>
Sinusitis is mainly caused by allergens such as dust, dust mites or pollens. It may be caused by fungal, bacterial and viral infection, as well as climate and temperature changes. The use of some medications can also trigger sinusitis as one of its side-effects. One of the best ways to avoid the condition is to know what can trigger the symptoms of sinusitis. For example if you’re well aware that dust or smoke can activate your sinusitis, then make sure that your home and office spaces are clean. At the same time avoid smoking areas. Also, carry a handkerchief to cover your nose if you’re outdoors and there’s a constant bombardment of air pollutants in your surroundings.