There are generally no 4 stages of bacterial cough, and there is no such clinical term.
Bacterial cough is a symptom caused by bacterial infection and does not belong to a well-defined disease, while the diseases that cause bacterial cough usually include acute bronchitis, pneumonia, acute pharyngitis and so on.
The disease will cause the patient to have a dry or irritating cough, which may also cause coughing up sputum in severe cases, but there is no clinical classification of the specific stage of cough.
Cough need to go to the hospital in a timely manner, clear causes under the guidance of the doctor for symptomatic treatment, the patient can not be at home on their own medication, so as not to affect the recovery of the disease due to improper use of medication.