I noticed coming back from Verona this week that i suffer far more on shorthaul flights (in Europe) than on longhaul or when i've flown domestically in the US, we were holding for ages before we landed which didn't help, the purser was kind and gave me a sweet which helped much better than chewing gum as encouraged me to keep swallowing, will remember that next time i fly, a trip to the doctors was also suggested before it does any serious damage