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.
Ibuprofen is effective for various types of headaches.
( z1 effective :ARG0 ( z2 ibuprofen ) :ARG1 ( z3 headache :mod ( z4 type :mod ( z5 various ) ) ) )