I started to develop a cold sore/ fever blister about a week and a half ago. It is now completely dried up, flat, no longer warm and feels just like the rest of my lip. it is only visible through the scar that it left. I recently engaged in sexual activity. is the scar of the cold sore contagious? did I pass it to my partner?
Hi. indeed as far as you relate it is quite possible that you have had herpes. herpes is contagious for a few days before the blisters appear and during the blister stage. it is not when it is dry. a single sexual contact is sometimes not enough for it to spread. Regards, Dr. Maldonado