You know, canker sores suck big time.

And "canker sore treatment" doesn't do anything to heal it -- it's just some light benzocaine (10% to 20%) to numb out the pain while providing a "patented protective layer" so you don't irritate it further. The rest is inactive ingredients like filler, menthol and other stuff. And it's really hard to administer properly, no matter what the packaging says! And you get third of an ounce for $6 USD -- that's almost as expensive ancient Chinese herbs!

So what heals canker sores, then? It's starting to interfere with my enjoyment of eating!