I thought the chisel and the drill were tools to do the job. The video below shows the chisel being used to take off the big chunks then the drill to do the fine work.
The choice of techniques is:
- going through s tube down the ear hole
- incision from behind the ear (basically cutting your ear off)
The down the ear hole method sounds a lot less traumatic.
The first set of drops I used made everything worse. A course of antibiotics didn't seem to do anything either. We tried some different drops and they are working well. I can hear most of the time and my ear feels a lot better.
The doctor took a swab to see what kind of bacteria was infecting my ear. In retrospect we should have done that first rather than guessing and trying different drops.
I am using Blu Tack as an ear plug to keep my ear dry. It reduces the water, but it certainly doesn't stop it completely. In the past I have tried silicone ear plugs (about the same as Blu Tack but more expensive), and Surf Ears which have so far been completely useless.
I have an appointment with a surgeon in a few weeks time. It's good to hear about successful experiences. Still not sure about how you work out if your surgeon is an expert or not.