We flew from Birmingham to Dublin just over a week ago (a 45 min flight, so a quick up and down). As we descended into Dublin, my DS (15) had a sharp headache, on one side of his forehead, consistent with sinus pain. He managed it with ibuprofen at first, but it kept coming back intermittently over the next couple of days, so we consulted a pharmacist who recommended Sinutab, which helped. It took about 3 days to gradually clear. Then when we flew back on Friday, he took one Sinutab pre-emptively and sucked on some sweets. He had no pain at the time, but it returned yesterday (about 36 hours after the flight). Does anyone have any experience of "aeroplane headaches" like this? Is it usual for them to last a few days? And do you get them every time you fly?