Sinus is a nasal problem responsible for breathing freely. This is responsible for visualising your nasal problem. This is also known as Functional Endoscopic Sinus Surgery (FESS). Dr. Suchir Maitra is an expert in nasal and sinus surgery to identify your nasal problems. It is done through a minimal incision through the nostril to visualise any blockage. No external incision is made to treat the nostril.