cold sores
"I've suffered with cold sores since I was about 6 years old, I am now 18 and when I was going through my final year of high school I had at least 1 cold sore a month because of the stress of things so I was prescribed acyclovir. I was told to take 2 a day for 3 months and then take a break and it dramatically improved my cold sores. They barely appeared but when they did they were half as big as usual and they healed within about 4 days. Now I only take acyclovir when I feel a cold sore coming on and it is honestly the best thing that I have used to help."