Thanks for your question.
Basically if there is no clinical improvement within 48 to 72 hours after starting antibiotics then one must consult his doctor again. However some of your symptoms such as fever and pain are responding to treatment therefore I would suggest waiting another day and taking the medication as prescribed by your doctor. And please don't worry about the tinnitus since this is temporary and will likely go away after a few days.
You may try the below mindfulness based tinnitus reduction exercise and see if this is beneficial:
So if the symptoms do not reduce even after another 24 hours please consult your doctor and most likely a change in antibiotic is indicated.
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The fact that fever and pain have reduced implies that the antibiotics are working.
With another few doses of antibiotic there will also be a gradual reduction in discharge.