@nima The biggest danger with T and flu (and ALSO colds), besides the chance the virus could attack inner ear, is precisely that mucus can cause otitis. Most of the time antibiotics are unnecesary, as this is caused by virus, and there is a bigger risk of ototoxicity than docs and pharmaceuticals tell you, do your own research and you'll see it.
I've had otitis two times in the last 3 years as a consecuence of common colds, at first it seemed that my T came to normal again, but with time I noticed it has gradually worsened.
Now I don't risk catching another one. The biggest risk for otitis is to have the mucus pass to the middle ear, specially while sleeping. My protective measures are: at the first sign of cold, before mucus even appear, I start to sleep sitting in bed (the head kept up with several big pillows), I take pure acetylcistein to dilute and throw faster the mucus, I make several vapor inhalations and clean my passages with salt water several times a day, and I use nasal steroids daily while the cold lasts.
Maybe this seems a lot to do, but since I do it, I haven't had nor even an ear pain while I have a cold, and much less another otitis.
Also, most of the colds can be avoided by being a bit "germ phobic" and washing hands several times a day with warm water and a proper soap whenever there is flu or cold surges, and better yet, avoiding touching door knobs in public places unnecesarily, keeping a distance with people whenever is possible, and avoid being near little kids, as they are the biggest transmitters of respiratory infections. I guess these things are not convenient for everyone, but I recommend them for everyone that want to be sure of not catching another otitis and worsen their T because of it.