Hi! I'm really worried about my dear friend.. We were sitting around talking and things.. When she got double vision, paleness,slow speech and then these HUGE hives appear on her skin like magical out of no where! They have spreaded to her throat and right shoulder/back of neck. I think it's an allergic reaction but I don't know to what though. We weren't doing anything but sitting there then she got to not feeling good out if the blue. Any advice?