i was stung by a hornet on July 3. I had a severe allergic reaction.. Hives covered my body, my face started swelling, and my left arm started going numb.. I went to the ER and they gave me bendryl but it has been a week and now my left hand up to my elbow are numb.. I am barely able to hold items with my left hand. I was wondering if this had to anything to do with the allergic reaction.?