Balloon Sinus Dilation (BSD) can be performed in the comfort of The Sinus Center of South Carolina. The patient is given the option of taking a mild sedative before the procedure, but for many patients this is not necessary. The nasal passages are sprayed with decongestants, and the lining of nose is carefully numbed/anesthetized. When we are certain the patient is comfortable, a small catheter is advanced into the natural openings of the sinuses. A balloon on the end of the catheter is then dilated using saline (salt water), allowing the opening to reshape and possibly increase up to six times the original size. The balloon is then deflated and removed.