on Thursday morning I noticed an opened lesion on the front of my thigh near my knee. I never saw a blister there. It was just an opened sore from the offset. Now on the third day of it being there it looks as if some smaller spots might be appearing near it. I have this on the bottom of my leg too. It's a big red circle with a pinpoint whitehead. My Doctor told me these weren't herpes because they come in clusters. Do these look like yours? Would I have noticed an actual blister before I saw the opened lesion?