Thanks for posting on HealthcareMagic.
The recurring wart
like lesion below your tooth, seems to be like an abcess due to infected tooth. The abcess is painless as the infected tooth is dead and the white oozing liquid is pus.
If you observe you may find an infected tooth above the abcess.
I would recommend you to visit your dentist
for the same as this tooth needs to be either root canal
treated or extracted and the pus drained. He may also put you on antibiotics to reduce the infection.