“That was a bit of a shock,” said the operator. “Love the moment of realisation,” one person commented on the video. “That would certainly get the heart pumping,” said another.

Many kinds of allergic reactions are more annoying than harmful. Not anaphylaxis. If not addressed promptly, it can cause a potentially fatal condition called anaphylactic shock.

Dad's Shocked Reaction to Daughter Coming Home Has Internet in Hysterics. Published Apr 08, 2025 at 10:09 AM EDT. By . Rachael O'Connor is a Newsweek Life & Trends reporter based in Leeds, U.K.

Treatments for severe allergic reactions cannot be put through randomized clinical trials — researchers can’t induce a life-threatening reaction and give half of the group a placebo treatment.