wow that's crazy as hell anyone being allergic to cannabis. i've heard people say they were but usually thought they were being paranoid and imagining that they were having a reaction of some sort.
this is the sort of thing that needs more research, why do some people have a adverse reaction to something that's healing to nearly everyone else? is it genetic in the person, or something environmental or dietary causing them?
my sympathy to folk who are cause i love hemp seeds and add a bunch of leaves in my diet on a regular basis as well as cooking with hemp oil, eating edibles, using hemp shampoo and skin lotion. and i smoke a little bit...