Had a bit of a blocked ear since I had a cold a few weeks ago. Was starting to get a little concerned because it didn't resolve itself and Oatex had no effect whatsoever...but on a visit to the doctors it was confirmed as just being hard wax. Nice. And the solution? Not Oatex, which is apparently not very good and can irritate your ear (oh yes) - olive oil. Good old find in the kitchen olive oil. This was news to me, but apparently all my friends knew this already. I'm so behind in home doctoring!