Welcome in H.C.M.
I have gone through your query regarding your persistent throat problem of cough
with phlegm not responding to common antibiotics and you have tried bronchodialater (ventolin
) your self but no response.All these for last seven months.
After considering all aspects of your complaints it is clear that you are having upper respiratory tract
infection which may involve the sinuses as well because your X-Ray chest is normal. So no you should go for these basic investigations-
(1) X-Ray paranasal sinuses
(2) C/S of throat swab.
(3)Sputum for Afb.
(4) Blood - CBC, ESR
, blood sugar ( F & PP )
By this much work we can reach to a clue to make proper diagnosis than after treatment may be plan.