A 31-year-old member asked:
How effective is valtrex (valacyclovir) for cold sores?
3 doctor answers • 11 doctors weighed in

Dr. Kyle Shankanswered
Dentistry 15 years experience
Very good: Valtrex (valacyclovir) is very effective for cold sores, although i typically prefer zovirax just because it's cheaper.
Created for people with ongoing healthcare needs but benefits everyone.
5.6k viewsReviewed >2 years ago

A Verified Doctor commented
A US doctor answered Learn more
The earlier an antiviral is started, the more effective it is in reducing symptoms.
Sep 1, 2012

Dr. Simon Rosenberganswered
Prosthodontics 48 years experience
Yes, Very Effective: Valtrex (valacyclovir) is a potent anti-viral against herpes simplex which is the cause of cold sores.
Created for people with ongoing healthcare needs but benefits everyone.
5.6k viewsReviewed >2 years ago

Dr. Scott Krameranswered
Gynecology 38 years experience
effective if early: Anri-virals work best if taken when prodrome like tingling occurs. Or of frequent outbreaks then as daily preventative.
Created for people with ongoing healthcare needs but benefits everyone.
5.6k viewsReviewed >2 years ago
Similar questions
A 46-year-old member asked:
Is there anything better than Valtrex (valacyclovir) for cold sores?
1 doctor answer • 2 doctors weighed in

A Verified Doctoranswered
48 years experience
Time: Any topical cream for cold sores helps with the pain however only time allows them to heal.
Created for people with ongoing healthcare needs but benefits everyone.
4.9k viewsReviewed >2 years ago
A 40-year-old member asked:
How long are cold sores contagious after taking valtrex (valacyclovir)?
1 doctor answer • 3 doctors weighed in

Dr. Nick Debnathanswered
ENT and Head and Neck Surgery 22 years experience
As long as sore is : ...Visible. Cold sores are contagious at all stages from the tingling stage to the weeping stage to the scabbing and healing stage. They are most contagious at the weeping stage when fluid comes out. Valtrex (valacyclovir) may shorten the duration of infection, but if the sores are still healing they are contagious.
Created for people with ongoing healthcare needs but benefits everyone.
4.9k viewsReviewed >2 years ago
Last updated Mar 12, 2016
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