If you travel much The Earpopper looks like something you’d want in your travel kit. As Healthy Concerns notes:

I fell asleep and neglected to wake up for the descent and go through the usual machinations to “pop” my ears. Immediately upon waking up as we landed I knew something felt a bit off.
…
had I been awake, and had I had the necessary prescription the EarPopper would have saved me all the trouble!

And, there is the rub: If she had the necessary prescription. But, why should she have to go through the trouble and cost of getting a prescription for an Earpopper?
Via Grand Rounds #53 at Family Medicine Notes.
Update 10/3: corrected two words.