What specific protocols should be followed for nasal steroid washouts in the postoperative care of Functional Endoscopic Sinus Surgery (FESS) for Chronic Rhinosinusitis with Nasal Polyps (CRSwNP)?

Nasal steroid washouts using corticosteroid solutions such as budesonide twice daily offer an effective protocol for postoperative care in CRSwNP following FESS, with better outcomes compared to standard saline irrigation. However, further standardization and studies on long-term efficacy are needed.