I use H202/baking soda, H202/colloidal silver. It has cured bad breath, whitened teeth and healed gum sores. The H202/colloidal silver cured a stomach ulcer caused by h pylori bacteria. H202 is marvelous. I have been using it to water my plants for about a year and only recently learned about it's other wonderful uses. I am going to start using Bill Munro's inhalation method shortly.