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A member asked:
Can i take acyclovir for a canker sore?
6 doctors weighed in across 3 answers
Yes, but...: Not all cankers are viral, so an antiviral may not make any difference. Also, by the time a sore is noticed, it is often time past the window of effectiveness.
Answered 10/20/2019
4.9k views
Acyclovir: Is for treating herpes simplex, aka cold sore or fever blister. It will not help with aphthous ulcers aka canker sores.
Answered 12/9/2013
4.9k views
No benefit: Cankers [APHTHAE] are NOT herpes. Acyclovir does absolutely nothing for them. Usually no treatment is needed. Sometimes they are severe and should be evaluated by a dermatologist.
Answered 11/28/2017
1.2k views
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