Antibiotics Have 'Little Effect' on Cough and Phlegm, Cardiff University Study  
3/25/2011 7:24:48 AM

BBC News -- Taking antibiotics for a bad cough which produces green or yellow phlegm is of little benefit, says Cardiff University research. A study of over 3,000 adults from across Europe found that patients producing coloured phlegm are more likely to be prescribed antibiotics by their GP.