Fig. 4From: Efficacy of povidone-iodine nasal rinse and mouth wash in COVID-19 management: a prospective, randomized pilot clinical trial (povidone-iodine in COVID-19 management)A bar graph illustrating the differences between the mean Sino-Nasal Outcome Test (SNOT)-22 scores for each group (Y-axis) at each time point (Days 0, 12, and 18)Back to article page