How to prevent headaches after air travel<br>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.
There are other painkillers besides Ibuprofen.
I know there are other painkillers available to people.
( z1 painkiller :mod ( z2 other ) :ARG2-of ( z3 except :ARG1 ( z4 ibuprofen ) ) )