I aggressively cleaned my ear canal with my finger and the canal got scratched. After several weeks elapsed, it got naturally healed but I cannot hear clearly probably because of the dead skin or scab abandoned inside. I want to remove it in an ear-nose-throat clinic and to explain it to the doctor.
I am afraid if I make use of a wrong word and makes the doctor confused. I have tried to use a free online dictionary, I got the following results.
dead skin : 壊死した皮膚
scab : かさぶた
What are the best words to convey the same meaning of scab and dead skin, respectively?