Hi, on my upper lip I have a straight line of possible fever blisters. It runs along the top lip, tucked slightly under, as if it were meeting the bottom lip. I m skeptical to it actually being fever blisters because it is not a clump, nor itchy and more so annoying because I can tell my lip is not normal. This morning I woke up and my lips were stuck together. Do you have any clue as to what is going on? I m not convinced it s a cold sore, but have been applying a cold sore cream. This is the second time this year I have experienced this.