Yes I have tried it. Didn't do any proper trials, just read the reviews from similar products.
https://www.etsy.com/au/listing/1141496076/macs-100-naturals-providone-iodinesaline
https://cofixrx.com/shopping/cofixrx-antiviral-nasal-solution/
https://triquetrahealth.com/products/nasomin-nasal-antiseptic
https://betadine.ca/nasal-spray/
https://www.epothex.com/products/povidone-iodine-nasal-spray-30ml-epothex
https://veritasmedical.com/product/iodine-nasal-spray/
https://viraldine.com/shop/ols/products/1-pvp-i-povidone-iodine-nasal-antiseptic-spray
https://www.immunemist.com/
