Failing to cure a chest infection

I have just finished a course of antibiotics that failed to cure my heavy chest infection. I am reluctant to go on another course of medication. Is there anything else I can do?

>>Chest infections include a variety of illnesses ranging from mild, acute bronchitis to more serious conditions such as chronic bronchitis and pneumonia.

With acute bronchitis (the most common form of infection) the infection should clear up by itself if viral or with the help of an antibiotic, if bacterial.