This is a rather difficult question to answer without me knowing what is causing his Dad's cough. It could be due to TB or Asthma or even another cause. I also do not have your son's age, but if he is coughing all the time he should be seen by a paediatrician so that a definite diagnosis of the cause of his cough can be made. His dad should also see a doctor.
The information provided does not constitute a diagnosis of your condition. You should consult a medical practitioner or other appropriate health care professional for a physical exmanication, diagnosis and formal
advice. Health24 and the expert accept no responsibility or liability for any damage or personal harm you may suffer resulting from making use of this content.