I have been getting colds about once a month since the end of Oct, they involve blocked nose, sore throat etc. Each time I get one I also get a bad cough where I bring up green phelgm, I have been on anti-biotics twice and steriods once (asthma) as they have gone into infections. Even when I stop coughing the green phelgm (after a week or so), I do continue coughing white phlegm for about another week. While the other times, the docs say it's just a common cold (I really can't tell the difference) however I keep having to have time off work, the cough is so bad I am sometimes sick with it. Anyone got any ideas?