Temporary tinnitus can last from seconds to hours. It can re-occur and is most frequently a result of exposure to excessively loud noise, from having a cold or receiving a blow to the head.
Most people experience tinnitus at some point in life and it generally lasts for only a few moments. However, people with tinnitus can suffer for months or even years. The sound of tinnitus varies and can include noises such as blowing, knocking, hissing, buzzing, ringing, sizzling or humming. One or both of the ears may be affected by tinnitus. Loud noises such as those experienced from a concert or in a sports arena may be a cause of tinnitus.