DS1 (6yo) told me the back, back, back of his mouth hurt and pointed to the roof of his mouth in the back. I took this as tge beginning of a sore throat so gave both boys some children's emergen-c with vitamin d3 drops. A few minutes later I found DS1 on the couch with a very flushed face. I then saw he has large flushed patches all over his body - hives? Having no experience with hives at first I was very concerned and didn't know what was wrong. Could the emergen-c have caused this? Is this something to be concerned about? Thanks.