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How to prevent headaches after air travel
Try ibuprofen.
Oftentimes, headaches that occur during or after flight are due to a sudden change in altitude. The painkiller ibuprofen may effectively prevent altitude related headaches before they begin.
In a recent study, hikers preparing for a high altitude journey were given doses of ibuprofen in the 24 hours prior to their journey. A little over 40% of hikers who took ibuprofen developed altitude-related headaches and nausea.