This very interesting. The last couple of years I have been dealing with terrible sinus issues. I have chalked it up to allergies since I do have animals. I deal with the runny nose every morning for a couple of hours after waking. It is always clear. Throughout the day I have drainage. It has even woken me up in the middle of the night. I spend half an hour clearing my nose before getting back to sleep. I will mention this to my neurosurgeon next week. I have tried many allergy medication without to much relief. Our bodies are so uniquely made. i have a feeling I will have several test ahead of me after meeting with my neurosurgeon but if this is part of my problem with my nose hopefully I can get some reliefe. I was diagnosed with C M I by MRI this year so I am just beginning this journey.