I Had Drainage From My Ear That Was Very Fishy

I had drainage from my ear that was very fishy smelling. I was placed on amoxicillin for 7 days. 3 days after the antibiotic was finished the smelly drainage returned. I was placed on Augmentin. I have been taking the Augmentin for 4 days, the drainage has stopped but my ear still feels full. Any suggestions?