A member asked:

I've gotten 4 large bleeding cold sores in past 5 months. on aclivir for 12 months. any prescription for relief? over the counter creams don't help.

3 doctors weighed in across 2 answers

Recurrent cold sores: Sometimes cold sores (herpes simplex infections) break through antiviral medication treatments like acyclovir. That can happen because Acyclovir may not be strong enough. There are two stronger and longer acting antiviral medications, valacyclovir and famcyclovir that may do better at preventing recurrence. Recurrence is also more likely if daily doses are skipped even once in a while.

Answered 6/24/2014

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See MD: See your MD for a definitive diagnosis. Possible referral to a specialist may be needed.

Answered 7/27/2018

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