DS2 came out in a hideous hivey rash over the course of yesterday after having some monkey nuts in the morning and it is looking sore and is very itchy today. He has had peanuts and other nuts on several occasions before and although he has had a couple of rashes that are similar to this we weren't able to pinpoint it to any particular food stuff.
We're off to the docs later, but in the meantime, can anyone help?
Could someone develop a reaction to something they have previously been OK with?