Good morning Doctor Nagler! I've had T since puberty (which happened almost 40 years ago... sheesh, time flies when you're having fun) and recently found out that both my mother and my brother have it as well. I'm not sure how severe their T is or the onset as we haven't talked about it, but mine has been fairly constant over the years. Mine has no known cause - no acoustic trauma, no ototoxic drugs, etc. We all have severe allergies and asthma as well. My asthma is well controlled using Singulair. Allergies are (mostly) controlled using Zyrtec, Allegra, and lansoprasole. (And yes, for 4-6 months out of the year, I do take Zyrtec and Allegra concurrently.) Are you aware of any research that has been done or is being done concerning familial T? I'd be very interested to find out if there is a genetic component. Thanks for all of the great advice and guidance. I enjoy reading your responses. Cheers, Kelly.