Odd that your surgeon doesn't give antibiotics after surgery, not even just for meningitis but also for other possible infections. Did they give antibiotics during your surgery? Now you have to get 2 meningitis vaccines before your surgery.
Here in Italy: FREE
All pre-op and post-op and surgery for €0.
I backed up one week before the surgery because they were willing to operate on the "good" ear I have left and not to the most severely damaged one. It could have gone wrong and I could have lost my only "good" ear (I am severely deaf in that ear).
Sometimes I even re-think about doing it, but it is just too risky.