I noted this a couple of years ago and showed to a GP. He could not find any serious problem and suggested cleaning of the ear. As the condition persisted I consulted an ENT Surgeon. He too informed me that there was a lot of phlegm and recommended Probeta-N ear drops (Betamethasone with Neomycin) and to clean the ear. This also did not improve hearing and I consulted another ENT Surgeon wanted me to get an Audiogram done. This was done and it showed "Moderate to Mild Hearing Loss". The Surgeon then recommended the use of a hearing aid probably considering my age (62 years). Another ENT Surgeon too confirmed the same diagnosis. I did not pursue this as I could easily manage without a hearing aid even now.
Meanwhile I recently used an Ear drop as I felt some irritation in the ear and noted that the drops instilled in the right ear remained inside while the drops put to the left ear came out as soon as I stood up - even after lying down for over 15 minutes after the ear drops were instilled to the left ear. Does this indicate some internal blocking of the ear? If so how come that none of these ENT Surgeons noted this defect?