If I remember the picture correctly, there are 8-10 sinus cavities. All of them are around the eye. That, combined with the fact that pain can appear to come from a different point than the problem, makes tracking down the culprit difficult. Doesn't care, the solution is the same. When it hurts, stop the dive, unless you enjoy a mask full of blood.
I had this happen for the first time in my forties (sharp pain over the eye). When we were 9 or 10 we learned to lock the eustachian tubes open and descend as fast as we could swim. Then I 'discovered' sinuses. I had to start holding onto my nose, like when you have a bad cold.
Kona vog (volcano crap) has been bad, off and on, for the last month. Even paradise isn't always perfect.
Aloha
Bill
P.S. I figured out how to use my brother-in-law's pentium machine (almost like the Mac) and it sure is cold on Vancouver Island.
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