Replied By Evan (Nyc, US) on 04/13/2014
I am prone to canker sores when under lots of stress. While recovering from my first bad illness in 4 years (I almost never get sick) I developed several nasty canker sores in my mouth. I saw that many people had success with ACV, applying it with q-tips and cotton balls. Since I had 4-5 canker sores and was impatient, I decided to just gargle with ACV for about 3 minutes, thinking that would be more effective. Well, the canker sores certainly got better, but the prolonged exposure to ACV burned my tongue and every surface of my mouth. Now it's the day after and I can barely taste anything, eating is an unpleasant chore and anything acidic or spicy is quite painful. When not eating, the inside of my mouth feels like it was soaked in tannins, which is also really unpleasant. So, if you're going to use ACV for canker sores, be smart and apply it ONLY to the sore as it will burn your healthy mouth tissue.