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Canker sores are a type of mouth sore. Theyâre not contagious, but they can be irritating and painful. Canker sore causes include stress, acidic foods and minor injuries to the inside of your mouth.
You can take B-cosule capsule.
Even without treatment, canker sores usually go away within two weeks.
Next Steps
Visit a local dentist and get it clinically evaluated.
Health Tips
Do warm saline rinses.