Back in 2012, i went to the er for a bad cough. They diagnosed it as reactive airways disease. Ever since that diagnosis, i been having a cough off and on for 3 months at a time. I been smoking for 11 years now. The er at the time prescribed me ventolin hfa. I went to my regular dr a week later and they ordered me a pulmonary function test. I got the results and it says that there is nothing wrong with my lungs. But i still continue to get the cough off and on every 3-4 months. Every time i use my inhaler, my chest gets aggravated and congested and it makes me cough more...as of 2013, im 28 weeks pregnant and im still smokin cigarettes. Since mothers day 2013, my chest was ptetty bad. When i exhale, i get this rumbling sound in my chest. The dr told me to try my inhaler but i told him my chest gets more congested abd i cough more. He said that it is normal for my chest to react that way with the inhaler. I been having this cough for the past week. I havent used my inhaler yet. Do i need to switch to another inhaler? Please need advice please. Thanks.