I have to wonder if all the moisture we vape isn't loosening up sinus cavities that have been caked with analog debris for decades. That has to cause short term issues. I've read that VG dehydrates more than PG but to me it sure seems the opposite.
I wonder too about certain flavors loosening sinus cavities. Aromatherapy definitely works for me with sinus infections, as does a neti pot. So maybe some of these flavors help with sinus drainage? I have a background in herbal medicine and I know berries loosen everything up- sinuses, digestion, etc. And I've noticed my nose running more with my blueberry juice. Not enough data to conclude it's from blueberry vapor, but quite possible. I can say with 90% certainty that vaping cinnamon would do it, as would a number of herbs that would never be used for flavoring. There has to be some crossover.
I wonder too about certain flavors loosening sinus cavities. Aromatherapy definitely works for me with sinus infections, as does a neti pot. So maybe some of these flavors help with sinus drainage? I have a background in herbal medicine and I know berries loosen everything up- sinuses, digestion, etc. And I've noticed my nose running more with my blueberry juice. Not enough data to conclude it's from blueberry vapor, but quite possible. I can say with 90% certainty that vaping cinnamon would do it, as would a number of herbs that would never be used for flavoring. There has to be some crossover.