Chronic rhinosinusitis is a common disease characterised by the inflammation of the nasal cavity and paranasal sinuses, with or without nasal polyps. Even after undergoing FESS inflammatory processes continue to play a significant role in chronic rhinosinussitis patients and hence the use of topical medical therapy plays a very important role. This study aims to evaluate the efficacy of nasal irrigation with various solutions including topical steroid like budesonide in order to treat chronic rhinosinusitis patients after FESS, and compare this with normal saline and alkaline nasal solution. 60 patients undergoing FESS for CRS were randomly divided into three groups. Each group was instructed to do nasal douching with different solutions and results were recorded. We found that topical steroids like budesonide when used as nasal irrigation solution and delivered in high volume effectively reduces the post–operative inflammation after FESS as compared to alkaline nasal solution and normal saline.