Related Questions

If I shared a straw with someone who has had a recent cold sore outbreak, can I take Valtrex (valacyclovir) as prophylaxis? If so, what dosage would be appropriate?

Not needed. Nearly everyone has been infected with the HSVI associated with cold sores and thus being exposed to a cold sore would not increase your risk in getting cold sores which only affect a relatively small number of people. Read more...
500 twice a day. If you don't have an outbreak but are wanting to use it for prophylaxis, then the dose would be 500mg every 12 hours for 3 days. Read more...

I have a cold sore that never broke open, is nearly healed. Treated with valtrex, (valacyclovir) but I kissed someone/had oral sex. What is risk for partner?

Difficult to tell.. We cannot predict the probability of an infection with a sore. IF it was present even though was not opened if the virus is contained in it there is always a possibility of giving it to the other person. If what is left is just a scar then it means it is not actively contagious. Read more...

How long till after getting a cold sore can I kiss my baby? Hsv1 is so bad that I have a prescription for valtrex (valacyclovir).

Wait. Wait till the lesion is clear entirely. You should not have any evidence of infection otherwise. Even without a lesion transmission is possible though much less likely. Read more...
Until it's gone. You will continue to shed active virus until the sore is completely gone. When there is no sign of the lesion, and the tissue looks completely normal, you will probably be fine. But remember it's not just kissing, it is sharing eating utensils, touching with your fingers etc. Don't forget you can also infect yourself, so wash your hands before going to the bathroom, rubbing eyes, etc. Read more...