I have had a hard lump for a month now on my
, behind the left bicuspid tooth. When I pressed it about 48 hours after it first formed, it drained pus which I could see. It also tasted salty and pus-like for 12 hours, and then it stopped tasting salty as it stopped releasing pus.
It also appears to change size slightly, decreasing in size and then increasing again.
It is very hard, but slightly movable.