For the vast majority of patients with sinus infections , a trip to the primary care doctor's office and a prescription for antibiotics is all that is required. However, for the unfortunate few, several courses of oral antibiotics do not seem to help as much as it should. In such cases, these patients eventually end up at an ENT office for further evaluation and management. ASSUMING the patient has bona fide chronic or recurrent sinus infections and not some other medical problem conf…