Hello, On monday night I noticed a red mark on the top right edge of my lip. I immediatley put Abreva on it thinking the worse that it was a cold sore. Two days later, it now looks like a tiny white dot, almost like a zit, so I dont know whether it is a cold sore or a zit. Or what it is. I had no tingling, burning or any of that. I ve been continuing to put Abreva on it although I am not sure what it is. Please help