Hello, I had cold when flying as a passenger, after landing I could not hear as before and had a pressure on my both ears. When I visited the doctor, he told me that I have otitis media / inflammation. Since that time, I have a crackling / popping sound in my ears and after nearly 2 years the crackling / popping sound did not even decrease. Finally, I was told I have Eustachian Tube dysfunction. As an airline pilot, I am worried about that issue. Could you please tell me what should I do? any treatment? Any risk to lose the medical license? Ps: Easa Any suggestion would be appreciated.