fess surgery in mumbai Persistent sinus problems can affect breathing, sleep, concentration, and everyday comfort. Symptoms such as a blocked nose, facial pressure, recurring headaches, postnasal drip, reduced sense of smell, and thick nasal mucus may sometimes continue despite medicines and nasal sprays. When chronic sinus disease or structural blockage requires surgical treatment, Functional Endoscopic Sinus Surgery (FESS) may be considered. fess surgery in mumbai is a mini