It's been a week since my last cold sore. It lasted about a week and a half with the help of rubbing alcohol, campho-phenique, and carmax. But then a few days ago I finally notice that there are some very tiny dark red dots on where the cold sore was formed. They look like I had poked my lip with a needle. Does anyone know what it is? And the spot of where my cold sore used to be still twitches a little or tingle for like 2 seconds every here and there. So does that mean that there's possibly still a cold sore and it's contagious?