Quote Originally Posted by mrdevious
If you're allergic to THC, you'd be allergic to the cannabinoids your body already makes naturally.
That's not necessarily true. You could be allergic to other things than the THC. Typically when people have allergic reactions, they're reacting to the protein content in the allergen. Even in vegetable matter like weed, there are tiny amounts of protein.

It's perfectly likely that you're allergic. I've known several other people who were allergic to grass. Are you quite certain, though, that your mouth isn't coming into contact with some sort of metal? The similarities between what you're describing and what you experienced with the trumpet mouthpiece are rather striking. Does Benadryl make the allergic reaction subside?