Tinnitus (TIN-IT-US) is the sensation of hearing a ringing or buzzing in the ears when there is no external source of the sound. There is no cure, but various treatments are available to mask or minimize the noise. Certain types of psychologically based tinnitus can be treated through biofeedback techniques that allow you to ignore the sound. Devices which emit white noise can mask the sound. A visit to a hearing specialist will enable you to undergo a series of tests which will determine the exact frequency that you seem to hear. The newest technology employs a device which transmits a second tone through the skull which cancels out the tinnitus sound. This is still in the testing phase, but seems to hold promise. See a hearing specialist for the latest methods of treating this annoying condition.