Hello, strange thing ... I am 37 years old and I had a classical seasonal cooling at Christmas with some flu, a lot of catarrh at the bronchial level, ears and throat. Paracetamol and aerosol with physiological and mucolytic has healed. The only annoying issue is a crackling in the ears every time I yawn or swallow, and full deafness when landing with a plane or going down by car from a mountain (even only 900 meters high) . I did 2 visits with 2 different otorhinolaryngologists, each performed the fibroscopy nose and throat examination, confirming free Eustachian tubes, paranasal sinuses, ears control, impedance and audiometric examination. Perfect hearing, zero residues of phlegm in the ears. The thing does not convince me because the crackling remains constant (attention, only if yawn or swallow, no other symptoms or whistles, etc). Under suggestion of the general practitioner I did a cycle of 12 "endotubaric insufflations", it doesn't seem there was some kind of progress with the problem that remains. What do you think ? Further advice? Thanks a lot to everyone Ale