My youngest GD, 6.5 years, is anaphylactic to dairy, pea protein and lilies. She is allergic to Sorbitol, in apples and pears, fish, soya, almonds and walnuts, and has idiopathic, (unknown), reactions as well. She also has hay fever and asthma.
She has to carry TWO epi-pens as well as antihistamines at all times, with laminated instructions, in a backpack that goes everywhere with her.
We read ALL labels obsessively, for her safety and with her brother, 12 years, being gluten intolerant we have to be extra careful.
It becomes a life style, looking for 'safe' food, reading labels, even on known products in case the change the recipe, and making sure that eating out is safe. Fortunately the parents of her school friends will ask what food she can eat, or my daughter provides her with appropriate party food for birthday parties.
My main gripe is having to pay extra for gluten, dairy, soya free foods, like a small loaf of bread costing between £2 - £3.50 and tasting like sandy cardboard!