I went to the doctor Tuesday with a history of 3 wks of what I thought was an upper respiratory infection/ sinus infection . There was considerable mucous and on coughing I was able to bring up mucous and get rid of it. Also, I was developing a little shortness of breath with a recent bit of chest tightness. My doctor ordered x-ray which showed lungs were negative for pneumonia . However on exam she said my wheezing was due to mucous in the airways. She ordered Ventolin inhaler 2 puffs every 4 hrs. for cough as needed . Since coughing is off and on but not continuous all day, with some coughing through the night, I was concerned that it was too much of the Ventolin. I ve never been on an inhaler and not sure about this. I spoke with the pharmacist and read the insert and pharmacist suggested to start it as ordered and watch the coughing. How much coughing warrants 2 puffs 4x a day? Also, how long should I be on the inhaler? Thank you.