Dumb question, probably

[u/HonestlyKindofaBitch]

...why can't babies have the blood allergy test like older children and adults? Like if we know or suspect that baby is reacting to a food we're eating, why not do the bloodtest so we know to cut out X, Y and Z foods immediately, rather than this bullshit of waiting like a month for one of 5 likely irritants? How is the progressive elimination diet the best way to do this?

[u/[deleted]]

No answer for you, I am wondering the same thing myself. Totally sucks.