[header] How to use herbs to treat bad breath [title] Use peppermint. [step] Peppermint oils can provide the mouth with a fresh and clean feeling. You can either chew on a mint or use the oils to make a tea. 
To make a tea mixture from fresh or dried peppermint : [substeps] Add a heaped teaspoon of the dried or fresh peppermint to a cup of boiling water. Allow it to steep for a few minutes.