--- title: Hay fever, allergies and EpiPens — a lesson of Mova's school · trees and pragmatics description: «Hay fever, allergies and EpiPens», a lesson of the medicine course of Mova's primary school, sentence by sentence with dependency trees and pragmatics. It begins: An allergy is your immune system making a mistake: it treats something harmless, like pollen or peanuts, as an enemy and releases histam --- [Mova](https://md.mova.elamur.ai/free/en/) · [this page in HTML](https://mova.elamur.ai/free/en/corpora/school/medicine/13-hay-fever-allergies-and-epipens/) [home](https://md.mova.elamur.ai/free/en/) / [corpora](https://md.mova.elamur.ai/free/en/corpora/) / [school](https://md.mova.elamur.ai/free/en/corpora/school/) / [Medicine](https://md.mova.elamur.ai/free/en/corpora/school/medicine/) / Hay fever, allergies and EpiPens # Hay fever, allergies and EpiPens Lesson 13 of the medicine course of Mova's primary school: 17 sentences, each with its syntax tree and pragmatics. The lessons are written for Mova, and their agreed trees are part of Mova corpus 0.4 (CC BY-SA 4.0). How Mova does on its tests: [the lesson at school](https://md.mova.elamur.ai/free/en/school-run/medicine/13-hay-fever-allergies-and-epipens/). - [0](https://md.mova.elamur.ai/free/en/corpora/school/medicine/13-hay-fever-allergies-and-epipens/0/) — An allergy is your immune system making a mistake: it treats something harmless, like pollen or peanuts, as an enemy and releases histamine, which makes you sneeze, itch or swell. - [1](https://md.mova.elamur.ai/free/en/corpora/school/medicine/13-hay-fever-allergies-and-epipens/1/) — Hay fever is an allergy to pollen from grass, trees or weeds, and you cannot catch it from anyone. - [3](https://md.mova.elamur.ai/free/en/corpora/school/medicine/13-hay-fever-allergies-and-epipens/3/) — The worst reaction, anaphylaxis, can be life-threatening; an adrenaline pen like an EpiPen opens the airways fast, and if in doubt it is safer to use it than to wait. - [4](https://md.mova.elamur.ai/free/en/corpora/school/medicine/13-hay-fever-allergies-and-epipens/4/) — Eczema, food allergy, hay fever and asthma often come together in the same child, because the immune system is extra sensitive. - [5](https://md.mova.elamur.ai/free/en/corpora/school/medicine/13-hay-fever-allergies-and-epipens/5/) — Hay fever is an allergy to pollen; histamine released by the immune system causes sneezing, itching and a runny nose, and it is worse on dry, windy days when more pollen is blown about. - [6](https://md.mova.elamur.ai/free/en/corpora/school/medicine/13-hay-fever-allergies-and-epipens/6/) — Antihistamine tablets, nasal sprays or eye drops help hay fever, and you cannot catch it from someone else. - [7](https://md.mova.elamur.ai/free/en/corpora/school/medicine/13-hay-fever-allergies-and-epipens/7/) — A food allergy is the immune system overreacting to a food, and even a tiny amount can cause a reaction. - [8](https://md.mova.elamur.ai/free/en/corpora/school/medicine/13-hay-fever-allergies-and-epipens/8/) — An adrenaline auto-injector opens the airways and raises blood pressure fast; it is pressed firmly into the outer thigh, even through clothes, and 999 is called because the reaction can come back. - [9](https://md.mova.elamur.ai/free/en/corpora/school/medicine/13-hay-fever-allergies-and-epipens/9/) — Using an adrenaline pen when not sure is safer than waiting. - [10](https://md.mova.elamur.ai/free/en/corpora/school/medicine/13-hay-fever-allergies-and-epipens/10/) — People with severe allergies carry two in-date adrenaline pens, because one dose may not be enough or one pen may fail. - [11](https://md.mova.elamur.ai/free/en/corpora/school/medicine/13-hay-fever-allergies-and-epipens/11/) — A rash after a medicine is not always a lifelong allergy; sometimes the rash came from the illness. - [12](https://md.mova.elamur.ai/free/en/corpora/school/medicine/13-hay-fever-allergies-and-epipens/12/) — Hives are raised itchy red patches caused by histamine, from food, heat, infection or nothing obvious; swelling of lips or tongue or trouble breathing needs an ambulance. - [13](https://md.mova.elamur.ai/free/en/corpora/school/medicine/13-hay-fever-allergies-and-epipens/13/) — In a skin prick test, tiny drops of possible allergens (things that may cause an allergy) are put on the arm and the skin is gently pricked; it does not give you an allergy. - [14](https://md.mova.elamur.ai/free/en/corpora/school/medicine/13-hay-fever-allergies-and-epipens/14/) — Many children grow out of milk and egg allergies; peanut and tree nut allergies more often last. - [15](https://md.mova.elamur.ai/free/en/corpora/school/medicine/13-hay-fever-allergies-and-epipens/15/) — Pet allergies come from proteins in skin flakes and saliva, not just fur; no cat or dog is truly hypoallergenic (free of allergy-causing proteins), though some cause fewer problems. - [16](https://md.mova.elamur.ai/free/en/corpora/school/medicine/13-hay-fever-allergies-and-epipens/16/) — In the UK food businesses must tell people which of 14 major allergens are in their food; picking the egg out of a dish does not make it safe. - [17](https://md.mova.elamur.ai/free/en/corpora/school/medicine/13-hay-fever-allergies-and-epipens/17/) — Eczema, food allergy, hay fever and asthma often run together in families and in the same child. - ← previous: [COVID and staying home](https://md.mova.elamur.ai/free/en/corpora/school/medicine/12-covid-and-staying-home/) - next →: [Asthma and inhalers](https://md.mova.elamur.ai/free/en/corpora/school/medicine/14-asthma-and-inhalers/) - ↑ back to [Medicine](https://md.mova.elamur.ai/free/en/corpora/school/medicine/)