Yesterday DS (aged 2) came out in a red rash around his mouth which had been covered in ketchup. Where he'd wiped the ketchup onto his fingers it went pink too and he started scratching the rash frantically and saying that it was itchy. I remembered that the same thing happened last time he had ketchup but I'd assumed it was something else. It also happened once when he ate a tortilla chip - where it had touched his cheek his skin swelled and went bright pink.
He's too young to be diagnosed with asthma, but he's been hospitalised three times with a 'wheezing attack' needing nebuliser & oxygen, and he has a salamol inhaler and occasionally is given steroid tablets with his wheezing. So he's probably asthmatic, although doctors don't call it that yet.
I'm not sure whether I should take him to the GP about the ketchup rash to talk about whether he might be allergic? (Our GP is super-unsympathetic). If he gets a skin reaction to it, does it mean he's allergic to eating it too? And do any of you know any common allergens that are in both ketchup and tortilla chips? It would be good to narrow down the actual cause of it. Thanks v. much in advance!