My doctors have me on 3 different inhalers at semi prescribed times. Example one is 2 times a day another is once daily, and last one is 3 times daily. Since I live in a rural area and small town where the pharmacy showed me how to load them and how to place in mouth to inhale med and he told me that I could take all of them at once if I wanted as each was a different chemical mixture. But my question is when and if to use my albutiral rescue inhaler and how do I tell if I really need to use?. Sorry just was diagnosed in Aug. Last year with beginning COPD but in Jan was admitted to hospital with double pneumonia and now a pulmonologist says it is COVID lung. I am confused