I wouldn't wait to find out if it has
spread to the brain or heart
. At that stage, you are in trouble and
would need to go to the ER as soon as possible. The fact that its popping and draining has
prevented it spreading too rapidly into the brain or heart but it may spread there anyways since its been several years that this infection has
been present. I would highly recommend taking care of your teeth immediately to prevent any life threatening situations.