A SEVERE reaction to a foreign protein.
If he doesn't get an injection of Adrenalin within a hour his throat swells up his face swells up and he is unable to breathe.
Some have peanut allergies. My son reacts to walnuts and pecans.
He has ingested things that were GUARANTEED TO NOT HAVE walnuts or pecans in them and he reacted because they DID. Maybe walnut OIL in a salad dressing. It's a terrain filled with LANDMINES for him.
He carries an EPIPEN with him at all times just in case. My son is 53. If there had been a draft when he was younger HE WOULD NOT HAVE BEEN ELIGIBLE. Just as those with ASTHMA ARE NOT ELIGIBLE.
I don't know how else to get that info across to those who make fus of asthmatics. IT IS A LIFE-THREATENING CONDITION. No kidding. No bullsh**. No partisan political spin. Sheesh.