Hello Dear,
Such a blister is common if you sustain any injury to the lip. These blisters usually don't require any surgery and resolve in their own. However if it is present for a long time, you can get it surgically removed. Rinifol and Zytee gel will help you better and will resolve the blister gradually.
Answered2016-06-01 03:27:28
Let others know if this answer was helpful