What is the cause of tinnitus?

A cold can easily lead to congestion and swelling of the Eustachian tube mucosa, resulting in Eustachian tube dysfunction, tinnitus, ear tightness, poor hearing and other symptoms, and severe patients will even develop secretory otitis media. After the recovery of a common cold, tinnitus symptoms will gradually disappear. At ordinary times, you can appropriately supplement some vitamins.