Acyclovir
"This drug has helped keep outbreaks to a minimum. I rarely, if ever suffer with this horrible disease anymore. I'm 68, and had my first outbreak at age 28. At first I only took the medicine when I noticed the first signs of an outbreak. For me, that was a pain in my upper leg, like I had pulled a muscle. It worked ok, but didn't completely keep the outbreak from happening. For more than 20 years now, I've been taking 400MG's 2 times a day. Good effective medicine? Perhaps. It could also mean that when I was younger there was more sexual activity and more stress = more outbreaks."