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.

Choose your answer: based on the paragraph above can we conclude that "Ibuprofen is effective for various types of headaches."?

Available options: (i) Yes; (ii) It's impossible to say; (iii) No;
I think the answer is
(ii)