in search for me ending my bad breath as well I saw that Colloidal silver can also be used as a deodorant surprisingly this product can also be used to treat bad breath if its caused by gingivitis. theres different forms of colloidal silver but basically all the same
"Topical Uses
Some have used colloidal silver in a nasal spray mister - to reach the sinuses and nasal passages. Spray bottles have been used for topical use on kitchen and bathroom surfaces, skin, sore throat, eyes, burns, etc. Colloidal silver is painless on cuts, abrasions, in open wounds, in the nostrils for a stuffy nose, and even in a baby's eyes because, unlike some antiseptics, it does not destroy tissue cells. It's excellent as an underarm deodorant, since most underarm odor is caused by bacteria breaking down substances released by the sweat glands!"
hope that works