International Rhinologic Society Rhinology 0300-0729 2026 01 10 Discrepancy between self-reported and actual topical steroid use in CRS-patients with nasal polyps EN C. Haase Department of Otorhinolaryngology—Head and Neck Surgery and Audiology, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark K.E.J. Håkansson Department of Otorhinolaryngology—Head and Neck Surgery and Audiology, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark K. AanæsDepartment of Otorhinolaryngology—Head and Neck Surgery and Audiology, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark C.S. UlrikDepartment of Respiratory Medicine, Copenhagen University Hospital - Hvidovre, Hvidovre, Denmark Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark B.A. EsbensenCopenhagen Center for Arthritis Research, Center for Rheumatology and Spine Diseases, Centre for Head and Orthopedics, Rigshospitalet, Glostrup, Denmark Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark R. Horne University College London, BMA House, UCL School of Pharmacy Tavistock Square, London, United Kingdom V. BackerDepartment of Otorhinolaryngology—Head and Neck Surgery and Audiology, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark Journal Article 3403 10.4193/Rhin25.385 Topical corticosteroids are standard therapy in chronic rhinosinusitis with nasal polyps (CRSwNP) and asthma, administered as nasal corticosteroids (NCS) and inhaled corticosteroid (ICS). Suboptimal adherence is associated with impaired health-related quality of life.