Suggest Treatment For Cough And Cold While On Bronchitis

In January I spent 5 days moving someone in minus 15 C weather. It was an emergency move. I was in and out if the house in and out if a stock trailer. The last day I spent on the trailer. I ve been sick since with what I tho was a bad cold. Then in February went to Mexico for a week. The remaining cough was gone. Then my lungs plugged up and the diagnosis is bronchitin. Azithromycin seems to be working. Amoxcillan did not. MY girlfriend suggested I used up my lungs in the trailer. I m used to outside temp much colder but am wondering. Diagnosis I m dealing with us bronchitis. I have no energy and sleep a lot.