I have ear blockage on my left side. Was told it was otitis externa and was prescribed antibiotic some time ago. Provided some relief and liquid behind ear drained, but still have blockage. Just had ear flushed and was told that ear looks slight red or irritated which is common with allergies and cold (I have both). Anything I could do to clear my ear blockage. I have been like this for almost 2 months now? Thanks.