The first time I noticed this was after a trip to Mexico six years ago, where I unfortunatly was struck by Norwalk virus.
Ever since when I get on a flight the right side of my face and brow line go numb, dentist freezing numb. Shortly after this sensation is followed by what feels like hundreds of bee stings across my face and right brow followed by intense pressure behind my right eye and pain in the right half of my head, from brow to earlobe.
I have been on maybe 4 flights since 2012, due to this issue constantly affecting me. It can be a quick 1 hour flight and still trigger the symptoms.
I took a sumo Triptan before my last flight and it seemed to take the edge off but 20minutes into the flight all the symptoms hit me again.