1 doctor weighed in:

Can thick severe post nasal drip/drainage be caused by sinus issues, although CT scans show sinuses as completely clear? And no sinus pain present?

1 doctor weighed in
Dr. Philip Miller
Family Medicine

In brief: YES

May not show up on CT scan if sinuses are deeply infected.
as in a severe cold or allergies.

In brief: YES

May not show up on CT scan if sinuses are deeply infected.
as in a severe cold or allergies.
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