I've had mouth ulcers (canker sores) all my life. Things I've found that cause them: - Pineapple - Lemon/Lime juice - Chilli - Sometimes Chocolate Things

I've had mouth ulcers (canker sores) all my life. Things I've found that cause them: - Pineapple - Lemon/Lime juice - Chilli - Sometimes Chocolate Things that prevent/reduce them: B6/B12/Folate