Seawater Nasal Wash to Relieve COVID-19 Nasal Symptoms and Reduce SARS-CoV-2 Viral Load.

"In this study, subjects are asked to adhere to the following dosage during the 3 weeks of the study:~* Nasal wash four times every day~* These washes are to be carried out in each nostril~* By continuously pressing the spray for 3 seconds in each nostril~* Subjects are recommended to distribute the 4 nasal washes as follows:~ * 1st : morning~ * 2nd : midday~ * 3rd : afternoon~ * 4th : evening Subjects will be instructed to maintain daily nasal wash over the 3 weeks study period even in case of earlier nasal symptoms resolution, in order to assess the impact of nasal wash on viral load and other symptoms."