Is this a cold sore?  I got this bump right above my lip. It looked like a pimple. It had a white head, I then pop it. My lip then became swollen under where my pimple like bump was. After 2 days the swelling decreased dramatically and a piece of skin came off on the swollen part of my lip ( not the white head) The white head built up again and I popped it. Everything is basically almost healed at this point. I didn't get any scabbing or have blisters on any of of area that was affected.