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A canker sore is a painful, open sore in the mouth. Canker sores are white or yellow and surrounded by a bright red area.
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Canker sores are small sores or ulcers that appear inside the mouth. They are painful, self-healing, and can recur.Canker sores occur on the inside of the mouth, usually on the inside of the lips, cheeks, and/or soft palate.
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Are fever blisters and canker sores the same thing?No.
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Canker sores are small sores or ulcers that appear inside the mouth. They are painful and often recur from once every few years to almost continually.
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Canker sores(aphthous ulcers) are small shallow sores or ulcers that appear inside the lips, inside the cheeks, or on the gums. They begin as small, reddish swellings.
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