Canker sores is another term to describe mouth sores.
Vitamin B12 safely relieves recurrent aphthous stomatitis (i.e., painful mouth sores also known as canker sores) after six months of therapy.* Up to 25% of the general population experiences mouth ulcers, yet no effective long-term treatment exists.
The study included 58 patients who reported recurrent mouth sores at least every two months for the past year. Patients were randomly assigned to take one sublingual tablet per day of vitamin B12 (1,000 mcg) or matching placebo for six months.