Time: Most oral ulcers resolve spontaneously after 7-10 days. There are some over-the-counter medications that might help, including ziladent and orabase. If they're caused by a virus, such as herpes, then abreva may help.
Answered 10/20/2012
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Sores?: If they are the typical sores they are probably a herpetic virus, like a canker sore but it could be a traumatic lesion from brusing your gums or cheek or a chemical burn like holding an Aspirin next to a bad tooth (don't try).
Answered 6/24/2014
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