Rest and medication: Stress is by far the most common cause of cold sore which is the recurrence of herpes viral infection. It is a self limiting condiction and normally heal in 2 weeks. Rest and stress control will help the healing process. Certain medicatons such as Acyclovir can speed the healing but not too much.
Answered 12/9/2015
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2 doctors weighed in across 2 answers
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