oracle, auricle

Oracle or oracle ( ore uh kuhl ) means a person who can predict the future, or who has divine revelations--
His predictions were so accurate that he was considered an oracle.
Oracle may also mean the sacred or mystic place where the future may be revealed--
They couldn't decide what to do, so they went to visit the famous oracle at Delphi.

Auricle or auricle ( ore ih kuhl ) means the outer part of the ear--
His auricle was pierced in several places.
The auricle showed no trace of infection, so the doctor checked for an inner ear infection.
Auricle may also mean something shaped like an ear--
This species of plant can be identified by the auricle at the base of the leaf.

Now that you know that, you can say--
"Doctors had been no help, so he visited an oracle, who told him that the real problem was in his left auricle."

Note--"oracular" means something that is in the nature of prophecy or divine revelation--
He meditated often, and sometimes claimed to have oracular visions.
"Auricular" means having to do with the outer ear, or shaped like an ear--
His auricular muscles were often sore, so he went to a dentist.