I had a ulcer inside the lower lip, in the starting days i have some pain so I have taken b complex tablet and Pain almost gone in a few days but I just checked and found that small white mark is still there and it almost 15 days over. I'm little bit scared after searching over google regarding the painless ulcer. Also in anxiety I'm touching that mark every hour also when i strech my lip that mark get disappear as it is just in the line of lower frenum Can any one please let me know how long takes for completely removal of that ulcer mark?