Thanks for writing to H.C.M. for your query.
I have gone through your query regarding blockade of your ear due to cold
and about three and half weeks have passed but you are not observing any improvement.
Considering your problems it appears as you are suffering from chronic upper respiratory tract
infection with Eustachian tube dysfunction
. To treat this first of all you have to do these basic investigations-
(a) C.T.scan of paranasal sinuses
(b) Culture and sensitivity of throat swab.
(c) Audiometery - ( Pure tone and Impedance ).
(d) X-Ray chest - P.A. view.
(e) Blood- CBC, ESR, blood sugar - F. & P.P.
Till the investigations reports are awaited you may take-
(1) Antibiotic- Amoxicillin
500 mg three times a day. Later this may be change according to C/S report of throat swab.
(3) Steam inhalation.
I hope this will help you and after the investigation's report one may reach to final diagnosis which may be manage accordingly.