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A member asked:

How long are cold sores contagious after taking valtrex (valacyclovir)?

A doctor has provided 1 answer
Dr. Nick Debnath answered

Specializes in ENT and Head and Neck Surgery

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.

Dr Mirabile and another doctor agreed

Answered 8/23/2019

4.9k views

Thank

Related Questions

A member asked:

I am taking valtrex daily to prevent cold sores. I got one 8 days ago however, but it only blistered for a couple days and then went away without leaking or scabbing over. I have now had a reddish scar there for 5 days now. Is it still contagious?

2 doctors weighed in across 2 answers

A member asked:

I have HSV1 genitally. i had an outbreak (2 sores). I'mtaking valtrex. Day 1 to 7, I took 1g twice a day. Day 8-14, I took 1g three times daily. Day13 I dropped down to 1g daily. It's now Day14. I only have a small mark left. Am I still contagious?

8 doctors weighed in across 3 answers

A member asked:

I had a cold sore that was treated w/valtrex & cured with in 4 days On the 5 day I still had a very small scab barely visible. Is it still contagious?

2 doctors weighed in across 2 answers

A member asked:

For the past 3 weeks i've been getting cold sores back to back - seems cyclic. Taking Valtrex (valacyclovir) and lysine. What could be the cause? Healthy otherwise.

4 doctors weighed in across 2 answers

A member asked:

I started taking 2 Valtrex (valacyclovir) tablets 1000mg for my cold sores last night. I am about to take the last 2 pills. When will the sores go away?

A doctor has provided 1 answer

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