Burton, Martin J.Clarkson, Janet E.Goulao, BeatrizGlenny, Anne-MarieMcBain, Andrew J.Schilder, Anne G.M.Webster, Katie E.Worthington, Helen V.2021-05-192021-05-192020-05-20Burton, M J, Clarkson, J E, Goulao, B, Glenny, A-M, McBain, A J, Schilder, A G M, Webster, K E & Worthington, H V 2020, 'Use of antimicrobial mouthwashes (gargling) and nasal sprays by healthcare workers to protect them when treating patients with suspected or confirmed COVID-19 infection (Protocol)', Cochrane Database of Systematic Reviews, vol. 2020, no. 5, CD013626. https://doi.org/10.1002/14651858.CD0136261469-493Xhttps://hdl.handle.net/2164/16507Sources of support Internal sources No sources of support supplied External sources National Institute for Health Research, UK Infrastructure funding for Cochrane ENT and Cochrane Oral Health Acknowledgements We would like to thank the peer reviewers, Professor Jeremy Bagg, Dr Karolin Hijazi, Professor Carl Philpott and Professor Claire Hopkins, for their insightful comments which helped us to improve these protocols. Thanks also to Professor Peter Tugwell, Senior Editor Cochrane MOSS Network, for acting as sign‐off editor for these projects. We are also grateful to Doug Salzwedel from the Cochrane Hypertension Group for providing search peer review comments for the draft search strategy. This project was supported by the National Institute for Health Research, via Cochrane Infrastructure, Cochrane Programme Grant or Cochrane Incentive funding to Cochrane ENT and Cochrane Oral Health. The views and opinions expressed therein are those of the authors and do not necessarily reflect those of the Systematic Reviews Programme, NIHR, NHS or the Department of Health.11137532engRK DentistryNational Institute for Health Research (NIHR)RKJournal article10.1002/14651858.CD0136265