On day 7 of my course of Valtrex, the sore was still there, and still, clearly active and I began to feel
tingling on the
side of my mouth, around my mouth, inside it. I have not felt this
tingling sensation before but I hear it indicates that more cold sores are going to erupt. My doctor gave me another course of Valtrex. So now I am on day 8 of Valtrex and applying Abreeva to my mouth and I worry that I am going to break out again, but on the mouth.