Washing Illness Away: A Systematic Review of the Impact of Nasal Irrigation and Spray on COVID‐19 - Gandhi - The Laryngoscope - Wiley Online Library
“Nasal irrigation is a common treatment for sinonasal disorders; however, it is unknown if it can reduce SARS-CoV-2 nasopharyngeal viral load (NVL). This systematic review investigated the efficacy of nasal irrigation with saline, povidone iodine (PVP-I), and intranasal corticosteroids (INCS) at reducing SARS-CoV-2 NVL and transmissibility.