Nina's Clinic

You're at a birthday party when 8-year-old Sofia eats a cookie from the dessert table. Within two minutes, she says: "My tongue feels funny and tingly." You look and things change fast: red, raised welts spread across her arms and chest. Her lips swell visibly — doubling in size in minutes. Her voice becomes hoarse and squeaky. She starts coughing and wheezing. She grabs her throat: "It feels like something is squeezing." Other parents are panicking. Sofia's mom is crying. You're the only one here with medical knowledge. You need to act now. Sofia's immune system detected something in that cookie — probably tree nut protein — and launched a massive overreaction. Her mast cells (alarm cells in the immune system) dump histamine (a chemical that triggers swelling and inflammation) everywhere, causing blood vessels to leak fluid (swelling), airways to narrow (wheezing), and blood pressure to drop. This is anaphylaxis, and it can kill in minutes.