HI I have gone through your mail as you have said that you are having chronic cough,and after advice of your doctor you have gone for X-ray chest (PA View)which put your doctor for suspition about pulmonary tuberculosis
but Apicolordotic view denies for tubercular infection
,In such cases you should go for detail clinical examination for both upper and lower respiratory tract
(means structures like-Pharynx,Larynx,Trachea and bronchus) should be examine for Allergic and infective pathology,and some investigations like-culture and sensitivity of throat swab,X-ray paranasal sinuses
,direct laryngoscopy and bronchoscopy.In this way one may reach the diagnosis than management may be plan.Thanks.