Natural Cures for Bad Breath and Halitosis

I just tried hydrogen peroxide yesterday before sleeping for bad breath. 50% lukewarm water and 50% peroxide. I woke up with an even worse smell. If I weren´t sure of what it was like before, today I´m absolutely sure it smelled like feces. Did anybody here had a bad reaction at the beginning to get better later? Should I give it another try?

hi, i have great oral hygiene, and suffering from halitosis for years. i just went to a breath clinic, nothing seems to work... HP does not work neither. Since I brush, scrape my tongue, mouthwash, floss 3x at least a day, I always have a clean feeling in my mouth, but as I hear from friends my breath smells like fart :((( Im devastated and hopeless that even one of the best halitosis doctor could not help... any ideas? thanks a lot.