I have a small white bump on my gum, it does not hurt, but it has been present for almost three weeks. I got it from chewing tobacco, however I had only been chewing for about three months when I got it. I have since quit but it has not gone away. It does not hurt, and it has progressively looked better, but has yet to go away. Any ideas? I will not be able to see a dentist for at least another five weeks.