I am writing this to share my experience to those who have the
same problem as me. Since secondary school, I have been having
blocked ear, and it got worse whenever I catch a cold. It affects
both my speaking & singing especially when I can hear my own
voice from within. My hearing is not that sensitive since then. I
hate the distracting voice from my inner ear especially when
speaking to people or humming a song I like.
Try this out to see if you find this distracting: Close your mouth
and hum any song that you can think of, do you hear your own voice
from within your inner ear ? If you does then you are probably
experiencing what I had once experienced.
Doctor diagnosed that I might have sinus and that what I am going
through is one of the symtom of sinus. I took the cold medicine and
use the nasal spray prescribed to me but the medicine only stop my
running nose but my ears are still blocked !
I was getting desperate for help. I seek internet to see if anyone
recovers from it but none actually does except maybe through
surgery. I have even tried ear-candling, although it only clears my
blocked ear but it is only temporarily as it came back less than an
hours later. Turning to last resort, I heed my mum's advice by
refraining from taking cold drink for a week and only consume
hot/warm stuff. And guess what ? After just about 1 week plus, and
my blocked ears symtom is gone and I am no longer hearing my own
voice from within. My hearing is back to normal.
If you are experiencing what I had experienced, try this out for 2
weeks to see if it works for you. It works for me and I certainly
hope it works for you too. 
