 Another Cochrane review looked at postoperative care of patients after FESS using debridement (removal of blood clots, crusts, and secretions from the nasal and sinus cavities under local anaesthetic), but the evidence from the available clinical trials was uncertain.The debridement procedure after FESS may make little or no difference to health‐related quality of life or disease severity.There may be a lower risk of adhesions but whether this has any impact on long‐term outcomes is unknown.