What Is a Mouth Ulcer?
4. Are Mouth Ulcers Painful?
Mouth ulcers can be very uncomfortable and painful, resulting in a burning or tingling feeling. Often, activities such as eating, talking, or drinking liquids can irritate the sore, causing more pain. People may first notice the canker sore because of the discomfort it causes before noticing any other symptoms.
The more severe the ulcer, the more painful it may be. There is one type of aphthous mouth ulcer called a herpetiform ulcer that takes on the appearance of many small ulcers, which can cause extreme pain. As the name suggests, this type of ulcer is similar in appearance to herpes
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