1. Brown CL, Graham SM. Nasal irrigations: good or bad? Curr Opin Otolaryngol Head Neck Surg. 2004;12(1):9–13.
2. Rabago D, Zgierska A. Saline nasal irrigation for upper respiratory conditions. Am Fam Physician. 2009;80(10):1117–9.
3. • Stuck BA, Bachert C, Federspil P, Hosemann W, Klimek L, Mosges R, et al. Rhinosinusitis guidelines of the German Society for Otorhinolaryngology, Head and Neck Surgery. 2011. This is the current update of the Rhinosinusitis guidelines of the German Society for Otorhinolaryngology, Head and Neck Surgery from 2011. This paper considers a high number of publication about ARS and CRS and recommends saline irrigations in the therapy of CRS. For ARS symptoms, neither isotonic nor hypertonic nasal irrigation or sprays has an alleviating effect.
4. Nsouli TM, Schluckebier CD, McSorley-Gerard EJ, Chabal N, Burke I. Long-term use of nasal saline irrigation: harmful or helpful? 2009 Annual Meeting of the American College of Allergy, Asthma and Immunolgy; Miami, Florida (USA): Ann Allergy Asthma Immunol 2009; 2009.
5. • Fokkens WJ, Lund VJ, Mullol J, Bachert C, Alobid I, Baroody F et al. European Position Paper on Rhinosinusitis and Nasal Polyps 2012. Rhinol Suppl. 2012;(23):3 p preceding table of contents, 1–298. This is the current update of the European Position Paper on Rhinosinusitis and Nasal Polyps from 2012. In the EPOS from 2012, nasal saline irrigation is described as beneficial in the treatment of CRS symptoms. The authors also confirmed the limited efficacy of nasal saline irrigation in adult patients suffering from ARS symptoms.