Hi Rosewater8,
It is always good practice to use a single test point to check for any allergic reaction to Kambo. You can then simply wipe off or proceed with your desired number of points. I've never experienced any negative reaction to Kambo or indeed correlation to food allergies.
I've never heard of the story you speak of. Remember though if the thoat does constrict slightly you can always breathe through your nose.
Best wishes,
KamboSpirit