If you have bronchitis that lasts for a short period of time then it’s called acute bronchitis, and if your bronchitis symptoms do not go away, then there is a high probability that you have chronic bronchitis. 

In most cases of acute bronchitis, treatment can help, and it gets better within a couple of weeks, but chronic bronchitis is not curable, treatment and medication can help, but it cannot go away completely.

With the help of a physical exam, blood tests and enquiring about any symptoms and medical history, the doctors will be able to rule out pneumonia and give the diagnosis as per your tests.