Canker sores: I understand your distress. Canker sores are mouth ulcers which can happen due to Mouth injury/irritation, deficiency of iron, folic acid, and other B vitamins, food irritation or stress. Antibacterial mouthwash like Listerine mouth wash ay help. Please see Oral surgeon because Canker sores are all over your mouth and tonsils for Diagnosis and Treatment.
Answered 1/1/2016
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