Does Valtrex work after appearance of a cold sore?

Using Valacyclovir After a Cold Sore Develops While valacyclovir is most effective the earlier you use it, it’s still highly effective for treating oral herpes after the cold sores have fully developed.

Can you take Valtrex after an outbreak?

Advertising revenue supports our not-for-profit mission. If you are taking valacyclovir for the treatment of chickenpox, it is best to start taking valacyclovir as soon as possible after the first sign of the chickenpox rash appears, usually within one day.

How quickly do cold sores go away with Valtrex?

For cold sores, valacyclovir or valtrex is usually taken in two large doses of 2,000 mg, split 12 hours apart from each other. Like with other outbreaks of HSV, valacyclovir will speed up the speed at which cold sores heal, but it can still take seven to 10 days for them to fully disappear.

Can you take Valtrex more than twice a day for cold sores?

Adult Dosing Recommendations The recommended dosage of VALTREX for treatment of cold sores is 2 grams twice daily for 1 day taken 12 hours apart. Therapy should be initiated at the earliest symptom of a cold sore (e.g., tingling, itching, or burning).

Can I take Valtrex 2 days in a row?

A person should not take more than 1 day (2 doses) of Valtrex when treating cold sores. Take the two doses 12 hours apart. Each dose consists of 2 grams of medication.

Can I take Valtrex daily to prevent cold sores?

To prevent cold sores, valacyclovir or another antiviral drug, acyclovir (Zovirax), can be taken daily. This reduces the chance of a cold sore coming back by about one-third.

Why did I get two cold sores in a row?

When the dormant virus is triggered, it’s common for cold sores to appear in the same place as previous cold sores, since the dormant virus lives in the skin’s nerve cells. This phenomenon is why recurring cold sores that appear in the same place are a common symptom for many people.

Why am I getting back to back cold sores?

Can HSV-1 turn into HSV-2?

People who already have HSV-1 are not at risk of reinfection, but they are still at risk of acquiring HSV-2. HSV-2 is mainly transmitted during sex through contact with genital or anal surfaces, skin, sores or fluids of someone infected with the virus.