My seventeen year old has known allergic reactions.yesterday he drank an energy drink despite the constant my constant nagging that those drinks are bad! And he had a really serious reaction,he was engulfed with white bumps on his entire body. He started with itchy throat then the bumps then he nearly past out and vomiting. He woke up the next morning and said his head,back and stomach has some discomfort? Thank you for your answer.