Thanks for writing to H.C.M.
I have gone through your query regarding earache, difficulty in hearing and feeling of fullness.
As per your symptoms it appears as you are having acute otitis media
. This usually develops due to Eustachian tube dysfunction
(blockade). This may be managed as -
(a) Take antibiotic.
(b) Steam inhalation.
(c) Anti allergic and mucolytic
(d) Anti inflammatry.
I hope this will help you.