Peter A. McCullough, MD, MPH™ on Twitter: "In my practice, the use of nasal/oral rinses with dilute povidone iodine or dilute hydrogen peroxide has been the biggest advance for both prevention and
![Amazon.com: Sinus Plumber Hydrogen Peroxide Nasal Hygiene Mist - Deep Cleans Nose – Airborne Particles - Cold and Flu Defense : Health & Household Amazon.com: Sinus Plumber Hydrogen Peroxide Nasal Hygiene Mist - Deep Cleans Nose – Airborne Particles - Cold and Flu Defense : Health & Household](https://m.media-amazon.com/images/I/41ju9oiRAEL._AC_UF1000,1000_QL80_.jpg)
Amazon.com: Sinus Plumber Hydrogen Peroxide Nasal Hygiene Mist - Deep Cleans Nose – Airborne Particles - Cold and Flu Defense : Health & Household
![Amazon.com: Sinus Plumber Hydrogen Peroxide Nasal Hygiene Mist - Deep Cleans Nose – Airborne Particles - Cold and Flu Defense : Health & Household Amazon.com: Sinus Plumber Hydrogen Peroxide Nasal Hygiene Mist - Deep Cleans Nose – Airborne Particles - Cold and Flu Defense : Health & Household](https://m.media-amazon.com/images/S/aplus-media-library-service-media/9b395ebc-38c8-45b6-acd9-d61f51e1e52a.__CR0,0,970,600_PT0_SX970_V1___.jpg)