I have an abcess on a tooth. i just finished a z-pack but the pain still hasn't gone away. is there something more serious going on?

Yes: Antibiotics cannot cure a tooth abscess. You must see a dentist.

Absolutely: Your not only self medicating, but antibiotics will not solve your dental problems. You need to see a dentist for this problem, now. Please call for an appointment.

Two concerns..: First, an abscess typically needs to be opened and drained of its infectious contents - without this important step, healing is difficult and limited and often not successful. Second, I'm concerned that a Z-pack would not be a great choice for the bacteria that typically reside in the mouth and that typically occupy an abscess. More management is necessary.

See a dentist ASAP: The only way to cure a dental abscess is with dental treatment. See a dentist for diagnosis and treatment.