Dear Dr. Roach: My husband had a nonstop coughing incident for a night and day after a feast, which landed him in the emergency room. He was found to have extremely low sodium levels (118-120 mEq/L), ...

For the second year in a row, the U.S. has surpassed 25,000 whooping cough cases — another sign of the risks of falling vaccination levels. Often called the "100-day cough," whooping cough or ...