Oral herpes?: New oral herpes infection can cause ulcers in the mouth, usually along with severe sore throat. But recurrent herpes outbreaks (cold sores) almost always are on the lips or elsewhere outside the mouth. Ulcers in the mouth usually have other causes. There's no way to know without professional evaluation. If herpes, treatment must start very soon to be successful. See a doctor ASAP.
Answered 1/11/2020
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2 doctors weighed in across 2 answers
A doctor has provided 1 answer
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