This document discusses surgical treatment options for sinusitis. It notes that surgery should only be considered if conservative treatment fails or if signs of sinusitis or intracranial complications emerge. Several surgical procedures are described for treating maxillary sinus disease, including antral lavage, intranasal antrostomy, sinoscopy, and Caldwell-Luc or radical antrostomy operations. The Caldwell-Luc procedure involves a sublabial incision to access and clear out the maxillary sinus. Post-operative care and potential complications are also outlined.