Canker sores are not what you’d call life-threatening but they are certainly annoying and uncomfortable. Also known as aphthous ulcers, these are small lesions on the mouth’s soft tissues or on the gum base. This is not contagious unlike cold sores, which is sometimes confused with canker sores. But just like it, it’s also painful and can make eating or talking a great challenge.
This problem can go away on its own within one to two weeks. To speed up healing, you can make use of yogurt home remedy.