Valtrex
"I've had HSV1 ever since I was 2. I had an outbreak then and again when I was 9 or 10. I'd forgotten that I even had the virus until a week ago. I got a new lip piercing and 3 days into the healing, my lip blistered. It had been 25 years since my last cold sore but I remembered what those blisters meant. I wasn't able to get to the doctor until two days later. By then, the blisters had broken open and were all crusted over. I took 2 of the Valtrex as soon as I got them and another 2, 12 hours later. Within a few hours the pain started going away. The terrible burning was gone. It's been 2 days since my last dose and my cold sore is in it's final healing stage. With the little scabs. My lip is flat again & the only pain is from the piercing."