Why is the cough so persistent?

Cough cough may be caused by bacterial infection, viral infection, mycoplasma infection, etc., allergic cough can also cause the same symptoms. It is recommended to go to the hospital for examination, if it is caused by bacterial infection, need to be treated with antibiotics under the guidance of a doctor. Patients should rest more during this period of time, cough is more serious, need to be treated with cough medicine under the guidance of a doctor.