Our expert says:
If the phlegm you cough up is green or yellow there may still be infection and you may need some antibiotics. Asthma will cause tightness but with colourless sputum. Ask him if you could try something like Seretide - it is an inhaler which is a combination of a long acting bronchodilator and inhaled cortisone and one can use the lower dose one which would prevent these episodes. You also only need to use this every 12 hours which is much more "patient friendly".Asthma can be triggered by more than one factor - allergy, cold air, exercise and emotional upsets.
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