Chronic cough can be due to various reasons, let us know if the cough is associated with sputum or if it’s just dry cough. If no lung problem has been detected in all your reports then you will have to look for extra pulmonary causes. Underlying gastritis, cardiac problem or because of any ear infection also patients might experience chronic cough. Your investigations done should be able to give a better idea of the disease . Post the investigations if possible.

Hi. I I understand your concern s. She will need to undergo a detailed examination and investigation Consult a pulmonologist for the same at the earliest

Hi If you post the reports it will give information's towards diagnosis