Just to let people know that I got a condition known as hairy tongue about a year ago when I first started messing about with H202. If you are going to use it for a mouth wash, make sure that even the 3% Peroxide is diluted. At most, the ratio is supposed to be 1:5 in the water.
Anyway, I took it straight and it caused a horrible unsightly condition called hairy tongue which I have NOT been able to get rid of.
I have posted something on this site about six months ago - tried everything, salt water, h202 dilute, lemon water, brushing it with a scraper etc and NOTHING works.
I am not knowing Hydrogen Peroxide. I am sure it is good stuff and has its uses but don't use it as a mouthwash like I did without diluting it. Be careful when experimenting.
Take Care (and if anyone knows something that can help me, please let me know)