Canker Sore or Aphthous ulcer

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6684   5 years ago
samer176 | 9 subscribers
6684   5 years ago
Canker sores (Aphthous ulcer) are small, painful ulcers on the inside of the mouth, tongue, lips, or throat.Canker sores are white or yellow and surrounded by a bright red area. They are not cancerous.
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