Cold Sores
"I&#039;ve had outbreaks with cold sores for about 10 years now on average 1-2x year, the last few years primarily due to stress and weather changes. The main key to the success of Valtrex - as with any OTC, prescription or home remedy for cold sores/fever blisters - is timing. Take it at the first tingle. I keep Valtrex refilled and keep it handy, regardless of whether I need it. I felt a tingle and a bump the other day, took it and it has helped tremendously. It&#039;s been 48 hours now and it has progressed past a slight red bump with no pain or bleeding. I haven&#039;t had a major outbreak in over 2 years. If you are able, keep it handy. As someone who has had some dreadful experiences with cold sores, I can say it works-but timing is important."