That said, I'd be happy to be put in a "family friendly" part of the cabin, and leave other audibly sensitive travelers to their piece.
It surprises me how poorly airlines integrate lap infants into their booking process. Often with domestic carriers there's no way to indicate that you're bringing an infant with you until you get to the checkin counter. Seems like poor planning.
as a kid, and now as an adult I've had generic allergies that have caused eustachian tube disorder(s) throughout my life.
Airplane rides cause agonizing headaches for me for about an hour after landing, and there is little to be done about it other than waiting through it. It sucks. The first time I experienced such a thing I felt as if I was going to be permanently deaf or disabled due to it, it's that bad.
This method is also described in that flight magazine on page 53 or something. Should be on the cover.
It's a form of Eustacian tube dysfunction:
http://en.wikipedia.org/wiki/Eustachian_tube#Disorders
My ENT recommends taking a hit of Afrin nasal spray during takeoff and again just before descent.
Chewing/swallowing tends to accomplish the same thing, which is why it's recommended to give them a bottle during takeoff/landing.
What is 10x more infuriating is a six year old screaming at the top of its lungs, with the parents either ignoring or smiling happily.