I haven't read any one post here say that it is NOT a PG/vg/flavoring allergy. It does really happen, no one is saying it doesn't. But he or she is calling out the juice makers as being at fault. NO ONE can predict what you may be allergic or sensitive to. If the juice that was bought is deemed unvapable then don't vape it. Not everyone is a juice mixologist. But the vapers who do DIY and mix only for themselves and don't sell it to anyone else kinda gets up in arms when someone coming here says that the ingredients used causes everyone harm. That just isn't true.
I have horrible allergies and have never experienced swollen lymph nodes because of it. My reactions never get that far into my body without signaling some sort of symptom first. Allergy symptoms are sneezing, swollen lips(where something touches) hives, runny eyes, etc.
Lymph nodes react to a whole body type of problem and should be seen by a doctor. And a process of elimination should be conducted to find that cause. In my experience lymph nodes usually swell because the body is fighting some sort of infection.
just my 2 pennies.
