I ve had a chesty cough for over 6 weeks now. I ve been to the doctors 3 times, 1st I was prescribed antibiotics, which didn t work, 2nd I was told I probably have asthma and severe hayfever so was given antihistamines and a relief inhaler, which don t seem to have helped at all. Yesterday I had to go to an emergency doctor due to a sudden development of UTI, which I ve never had before. I just wondered whether this could be linked to the chesty cough? the cough sometimes produces thick yellow phlegm.