I have had this medium size bump on the inside of my lip for about 3 1/2 weeks now. It doesn't hurt at all, I can pinch it and poke it and no pain whatsoever. I went to the doctor and she said it looked like a deep bruise or just a blood blister and to come back if I doesn't go away in 3 weeks . This thing is really annoying me because of its size and I was seeing if anyone had any thoughts. Again there's no pain whatsoever and it doesn't look like it's going down anytime soon.