If your pain has worsened despite all this treatment, then you most definitely need to consult with an ENT surgeon nearest you & get a second opinion
. The net is not the place to be doing this effectively.
It is very likely that your Eustachian tube openings are inflamed & there is a case for natural remedies like warm saline gargles or admixed witha touch of betadine
& for steaming.
It is very likely that your 'middle ear' has an infection from your description.
Sometimes there is an antibiotic sensitivity & perhaps a change of antibiotic & an antiinflammatory agent with a decongestant like Otrivin
is the order of the day to relieve symptoms.
Take care & get well soon..here's to continued good health!
Dr Praveen Rodrigues MD