Every 2-3 weeks, I wax my upper lip. For the past few months, I've noticed that i get the same small spot 1-2 days later on the edge of my upper lip. It's very small, but I notice it now because I expect it to surface when i wax. It's flat with a little swelling, skin colored and just a little red around the edge, never comes to a head and never blisters. I've tried popping it, but there's nothing really to pop. It usually goes away within the week. I also have been using Benzaclin for the past few months. I try to use it only when i have a pimple coming on. I know it can make my skin very sensative. I've never had a cold sore, but could this be one?? I dont feel any tingling or the other symptoms I've read about concerning cold sores.