Medically speaking, the condition is called chronic rhinosinusitis and for decades, it has been a mystery. What starts off as the signs of a cold or allergy soon becomes a rather complicated problem for which there are few treatments and even less cures. Most of the time, medications are prescribed but some cases become so dire surgery is needed to help a person finally breathe clear. What makes this ailment so frustrating is the lack of a proper cause. The list of suspects includes genetics, cigarette smoke, and allergies.