Endoscopic sinus surgery is a minimally invasive procedure used to treat chronic sinusitis and other sinus-related issues. During the surgery, a thin, flexible tube with a camera, called an endoscope, is inserted through the nostrils to visualize the sinus cavities. This allows the surgeon to remove blockages, such as polyps or infected tissue, improving airflow and drainage. The procedure is typically performed under local or general anesthesia and usually takes less than an hour. Patients often experience less pain and a quicker recovery compared to traditional sinus surgery, making it a preferred option for many individuals suffering from sinus problems.