 [ Symptoms ] ear infection im an adult got a cold 2 weeks ago thought i was getting better but then sinus trouble began was in urgent care 3 days ago sinus infection confirmed put on 2000 mg amoxicillin i did not tolerate that dose without bad diarrhea  so i cut the dose in half 2 days yesterday after starting it i woke up with 1 ear plugged solid today very painful nurse at work confirmed that my ear was red and bulging i have about 40  hearing ability between both ears and am miserable what to do now [ Disease ] not all middle ear infections respond to amoxicillin and because you could not take the recommend dosage you are going to need an alternative antibiotic perhaps a stronger one that is not so hard on your gi tract please call your doctor for a change in your therapy because you also have a sinus infection that needs treatment as well