I have perforated eardrums, since childhood, and even going up and down hills can make my ears pop.
Before earplanes when on a plane I would be almost screaming in pain and cutting the circulation to my husbands hand by squeezing it so hard! It was a real nightmare. But with this product my ears don't hurt. They are incredible, I can't believe how drastic the result was! You just put them in using a corkscrew action before flying, take them out in flight (if long haul, for short haul I just kept them in all the time), put them in an hour before landing and leave them in a while after.
My mum had a serious ear infection just prior to flying and these really helped her ears too.
I just can't recommending these high enough! Love them!