Hi. I've had a cold which then made my asthma worse. The doctor gave me steroids for 5 days but i was still using my inhaler a lot. I have been coughing up like a white coloured phlegm. Im ok if i sat down but when i do anything my chest goes tight again. I saw the asthma nurse. She said i wasn't wheazy but upped my preventor from seretide 50 to seretide 125 😕 i dont understand why they would up this if im not wheazy. Any help would be appreciated.