Most of us have experienced a temporary loss of smell, as a common side effect of a common cold. But what if a lost sense of smell doesn't come back?
msnbc.com: Top msnbc.com headlines, NBC News
Tue, 03/01/2011 - 7:53am
Most of us have experienced a temporary loss of smell, as a common side effect of a common cold. But what if a lost sense of smell doesn't come back?