A " sinus (sinus) headache" is a headache caused by pain in, of course, your sinuses.

“鼻窦（鼻窦）头痛” 是一种由鼻窦疼痛引起的头痛。

Then it's not a sinus headache either?

卢佩：那也不是鼻窦性头痛？

You go in and complain of a sinus headache and he washes out your antrums for you.

你进去抱怨窦性头痛， 他为你清洗你的胃窦。