Re: Allergic to everything!
Well, that's not a good situation.
One thing you could do temporarily is buy some "elemental" nutrient drinks, intended for children with many food allergies. It has no proteins, only amino acids, hence no allergic reactions. It would be difficult for an adult to live on that indefinitely, but it can at least keep you nourished while your hives settle down and you find some foods you aren't allergic to.