Cough is a very common clinical presentation. The causes come from local or systemic factors. So it is not specific to any specific disease. It can be a response to just a simple reason that virus and bacteria invade our respitory systems, or severe damages of organs including skin to hearts, lungs, even gastic and urinary systems. So, we should carefully conclude the real cause of this physical sign and give coreect treatment replcing neglect the alarms from our bodies.