Sinusitis is a disease of the sinuses and is a common problem that afflicts over 29 million Americans. The sinuses are cavities in the front of the skull around the nose region. They are lined with soft tissue that has a mucous membrane covering. Normally, the sinuses are open and air flows in and out of them. The mucus in them also drains down to an outlet at the back of the nasal passage. What is Balloon Plasty? If for whatever reason, the sinuses get blocked, then mucus piles up in the cavities instead of draining out. This trapped mucus could become the site for growth of bacteria, further compounding…